NCCN Consensus Guidelines for the Diagnosis and Management of Breast Implant-Associated Anaplastic Large Cell Lymphoma

Evaluating the Necessity of Capsulectomy in Cases of Textured Breast Implant Replacement

BACKGROUND

Capsulectomy has traditionally been recommended as a treatment for capsular contracture after breast augmentation. With the advent of breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL), and the Food and Drug Administration's decision to ban Biocell textured devices, this operation has taken on new importance. This review was undertaken to better inform clinical recommendations for women with textured devices.

METHODS

An electronic search was performed using PubMed to identify all the available literature on the subject of capsulectomy and open capsulotomy (the alternative treatment).

RESULTS

Fifty-seven articles on this topic were identified. Capsulectomy was widely recommended for treatment of capsular contracture, although many authors recommended leaving thin capsular tissue behind in the absence of symptoms. En bloc resection was recommended only for women with a diagnosis of BIA-ALCL. No information supported a prophylactic role for capsulectomy in asymptomatic women with textured breast implants who are concerned regarding their future risk of BIA-ALCL. Routine pathologic examination in asymptomatic patients was not supported.

DISCUSSION

Capsulectomy adds substantially to the surgical risk, discomfort, recovery time, and expense. Implant removal or replacement without a simultaneous capsulectomy is atraumatic and poses negligible risk.

CONCLUSIONS

Capsulectomy introduces additional morbidity and is not mandatory for asymptomatic patients. Implant removal or exchange for smooth implants without a capsulectomy may be an acceptable choice for many women who do not demonstrate capsular pathology. However, any symptoms or surgical findings suggesting pathology warrant a capsulectomy. En bloc resections are reserved for patients diagnosed with BIA-ALCL.

The State of the Art about Etiopathogenetic Models on Breast Implant Associated-Anaplastic Large Cell Lymphoma (BIA-ALCL): A Narrative Review

BACKGROUND

Breast-implant-associated anaplastic large cell lymphoma is a rare malignancy linked to texturized breast implants. Although many researchers focus on its etiopathogenesis, this topic is affected by a lack of evidence.

MATERIALS AND METHODS

A literature review about BIA-ALCL was made.

RESULTS AND CONCLUSIONS

Although the incidence is reported between 1:355-1:30,000, there is great attention to BIA-ALCL. The incidence is uncertain due to many reasons. It may well be lower, due to inclusion in multiple databases as pointed out by the FDA and undiagnosed cases. The role of chronic inflammation, bacterial contamination, and mechanical forces was discussed. Clarification is needed to understand the mechanisms underlying the progression of alterations and mutations for BIA-ALCL; new molecular analysis and pathogenetic models should be investigated.

Breast Implant-Associated Anaplastic Large Cell Lymphoma Online Education Tools: A Multimetric Analysis

PURPOSE

In light of highly publicized media coverage on breast implant recalls and Food and Drug Administration hearings on breast implant safety, online searches of these topics have surged. It is thus critical to determine whether such searches are providing meaningful information for those who use them. Patient/laywomen-directed online education materials on breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) must not only be comprehensible but also accurate, actionable, and culturally concordant, especially as more diverse populations turn to the internet for breast implant-related information. This study assessed the overall suitability of BIA-ALCL patient-directed educational text and video-based materials online.

METHODS

This was a cross-sectional, multimetric investigation of online text- and video-based patient-directed educational materials for BIA-ALCL using multiple validated measures. Two reviewers assessed each resource. Kruskal-Wallis and Fisher exact analyses were used as appropriate to compare text- and video-based online resources.

RESULTS

In total, 30 websites and 15 videos were evaluated, more than half (56%) of which were from academic/physician or governmental/nonprofit sources. Overall, website and video content, as well as quality, varied by source. Academic/physician or governmental/nonprofit sources tended to be more comprehensive and have higher-quality information than commercial/media outlet sources. Median actionability of websites was 38%, well below the threshold of 70% used in the literature to identify actionable resources. The median suitability score for BIA-ALCL websites was 57%, which is considered "adequate" based on published thresholds. The mean overall Cultural Sensitivity Assessment Tool score for websites was 2.4; Cultural Sensitivity Assessment Tool scores higher than 2.5 are generally regarded as culturally sensitive. In general, videos were more understandable than websites. Substantial interrater reliability across the validated tools used in this study was noted using Pearson correlation coefficients.

CONCLUSIONS

Online resources varied in content and quality by source. As BIA-ALCL becomes an increasingly salient topic among both providers and patients, it is important to empower women with accurate information about this implant-associated cancer. Of available resources, providers should refer patients or those seeking more information to websites from governmental/academic organizations (".gov" or ".org" domains) and videos from academic/physician or governmental sources, given that among high-quality resources, these were most clear/comprehensible. Overall, there is a need for improved online content on this topic.

Chest wall infiltration is a critical prognostic factor in breast implant-associated anaplastic large-cell lymphoma affected patients

BACKGROUND

Breast implant-associated anaplastic large-cell lymphoma is a rare disease with a favourable prognosis if adequately treated. Same staged patients have usually a similar prognosis and outcomes, but in our experience, IIA-staged patients have a wider prognosis with outcomes that vary from complete disease response to death. This study aimed to understand and identify all the factors that could influence the prognosis of this group of patients and verify if their prognosis matches the stage they belong to.

MATERIAL AND METHODS

Patients in stage IIA have been divided into two subgroups: IIAb with lymphoma extension towards the glandular tissue and IIAcw with tumour extension towards the chest-wall. The overall survival (OS) and event-free survival (EFS) of 64 BIA-ALCL cases were evaluated for each staged group.

RESULTS

Significant differences of OS and EFS between IIAb and IIAcw patients (log-rank p = 0.046 and log-rank p = 0.018, respectively) were observed and poor prognosis joined IIAcw- and IV-staged patients.

CONCLUSION

Chest-wall infiltration is a critical prognostic factor in BIA-ALCL patients as it influences the possibility of performing a surgical radical tumour extirpation. Our results could represent valid assistance for the physicians in choosing the most appropriate BIA-ALCL prognostic category and treatment and could promote further wider studies to provide stronger evidence on a possible revision of the MDA TNM classification.

Applying Principles of Breast Revision to Managing Aesthetic Patients with Textured Implants

SUMMARY

Textured breast implants have garnered increased attention recently because of their risk of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL), an uncommon and treatable type of T-cell lymphoma. Treatment involves bilateral en bloc capsulectomy, which is curative in the majority of cases. At present, there is no defined management approach for aesthetic patients asymptomatic for BIA-ALCL requesting the removal of their textured implants, particularly as it relates to the management of the capsule. It is unclear if en bloc capsulectomy is necessary in these patients as it is in patients with BIA-ALCL. In the absence of clear guidance on the management of the capsule in asymptomatic patients, the basic principles of breast revision surgery can be applied to these patients.

Cellular and Molecular Mechanisms of Breast Implant-Associated Anaplastic Large Cell Lymphoma

SUMMARY

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an emerging and highly treatable cancer of the immune system that can form around textured-surface breast implants. Although the underlying cause has yet to be elucidated, an emerging theme-linking pathogenesis to a chronic inflammatory state-continues to dominate the current literature. Specifically, the combination of increasing mutation burden and chronic inflammation leads to aberrant T-cell clonal expansion. However, the impetus remains largely unknown. Proposed mechanisms include a lipopolysaccharide endotoxin response, oncogenic transformation related to viral infection, associated trauma to the breast pocket, particulate matter digestion by capsular macrophages, chronic allergic inflammation, and genetic susceptibility. The Janus kinase-signal transducer and activator of transcription 3 (JAK-STAT3) pathway is a major signaling pathway that regulates a variety of intracellular growth and survival processes. Constitutive activation of JAK-STAT3 has been implicated in several malignancies, including lymphomas, and has recently been identified as a potential key mediator in BIA-ALCL. The purpose of this article is to review the cellular and molecular mechanisms of BIA-ALCL with a focus on the role of oncogenic JAK-STAT3 signaling in BIA-ALCL tumorigenesis and progression. Selected experimental work from the authors' group on aberrant JAK-STAT3 signaling in BIA-ALCL is also included. The authors discuss how an inflammatory microenvironment may facilitate malignant transformation through the JAK-STAT3 pathway-highlighting its potential mechanistic role. The authors' hope is that further investigation of this signaling pathway will reveal avenues for using JAK-STAT3 signaling as a prognostic indicator and novel therapeutic target in the case of advanced disease.

Controllable Factors to Reduce the Rate of Complications in Primary Breast Augmentation: A Review of the Literature

BACKGROUND

Aesthetic augmentation mammoplasties are one of the most demanded procedures performed in the aesthetic surgical sector. Because of the high epidemiological impact, the evaluation of measures to reduce the risk of complications is highly needed. The goal of this review is to evaluate the current literature for successful actions to reduce the risk of complications in aesthetic breast augmentation.

METHODS

We searched Medline-listed journals for "complications primary breast augmentation" and defined surgeon-dependent and patient-dependent factors within those.

RESULTS

Most of the strategies to reduce the risk of any complication are based on meticulous hygienic precautions and adequate training of the surgeon. The current literature suggests complications such as capsular contracture, infection and BIA-ALCL are closely linked with bacterial contamination and therefore can be avoided with different hygienic measures.

LEVEL OF EVIDENCE III

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Post-Chemotherapy Rebound Thymic Hyperplasia Mimicking Relapse in Breast Implant-Associated Anaplastic Large Cell Lymphoma: A Case Report

INTRODUCTION

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an unusual form of T-cell non-Hodgkin lymphoma. Surgical management is essential; however, adjuvant therapy is recommended for advanced stages of cancer.

CASE PRESENTATION

A 40-year-old woman with textured silicone implants placed 7 years earlier, presented with breast nodules. Physical examination and computed tomography (CT) revealed a left parasternal mass, 2 left-breast nodules, and axillary lymphadenopathies. A soft-tissue lesion in the anterior mediastinum consistent with thymic remnants was detected. BIA-ALCL was diagnosed based on ultrasound-guided core biopsies of an axillary lymph node and a breast nodule. She underwent total bilateral capsulectomy and received anthracycline-based adjuvant chemotherapy. End-of-treatment positron emission tomography-computed tomography (PET-CT) scan at 4 months showed no evidence of disease, except for the persistence of the mediastinal lesion (Deauville score 4). Three months later, a new PET-CT scan showed enlargement of the lesion and increased radiotracer uptake, suggesting metabolic progression. A mediastinal biopsy was performed and rebound thymic hyperplasia (RTH) was observed in the histopathologic study. Once complete remission (CR) was achieved, the patient was followed up continually and has shown no signs of relapse to date.

CONCLUSIONS

Further studies are required to determine the best adjuvant therapy for advanced BIA-ALCL. RTH may be suspected when thymic enlargement without the involvement of other areas is observed in patients with cancer. Mediastinal biopsy is mandatory to rule out relapse.

New developments in non-Hodgkin lymphoid malignancies

The revised fourth edition of the World Health Organization (WHO) Classification of Tumours of Haematopoietic and Lymphoid Tissues (2017) reflects significant advances in understanding the biology, genetic basis and behaviour of haematopoietic neoplasms. This review focuses on some of the major changes in B-cell and T-cell non-Hodgkin lymphomas in the 2017 WHO and includes more recent updates. The 2017 WHO saw a shift towards conservatism in the classification of precursor lesions of small B-cell lymphomas such as monoclonal B-cell lymphocytosis, in situ follicular and in situ mantle cell neoplasms. With more widespread use of next generation sequencing (NGS), special entities within follicular lymphoma and mantle cell lymphoma were recognised with recurrent genetic aberrations and unique clinicopathological features. The diagnostic workup of lymphoplasmacytic lymphoma and hairy cell leukaemia has been refined with the discovery of MYD88 L265P and BRAF V600E mutations, respectively, in these entities. Recommendations in the immunohistochemical evaluation of diffuse large B-cell lymphoma include determining cell of origin and expression of MYC and BCL2, so called 'double-expressor' phenotype. EBV-positive large B-cell lymphoma of the elderly has been renamed to recognise its occurrence amongst a wider age group. EBV-positive mucocutaneous ulcer is a newly recognised entity with indolent clinical behaviour that occurs in the setting of immunosuppression. Two lymphomas with recurrent genetic aberrations are newly included provisional entities: Burkitt-like lymphoma with 11q aberration and large B-cell lymphoma with IRF4 rearrangement. Aggressive B-cell lymphomas with MYC, BCL2 and/or BCL6 rearrangements, so called 'double-hit/triple-hit' lymphomas are now a distinct entity. Much progress has been made in understanding intestinal T-cell lymphomas. Enteropathy-associated T-cell lymphoma, type II, is now known to not be associated with coeliac disease and is hence renamed monomorphic epitheliotropic T-cell lymphoma. An indolent clonal T-cell lymphoproliferative disorder of the GI tract is a newly included provisional entity. Angioimmunoblastic T-cell lymphoma and nodal T-cell lymphomas with T-follicular helper phenotype are included in a single broad category, emphasising their shared genetic and phenotypic features. Anaplastic large cell lymphoma, ALK- is upgraded to a definitive entity with subsets carrying recurrent rearrangements in DUSP22 or TP63. Breast implant-associated anaplastic large cell lymphoma is a new provisional entity with indolent behaviour. Finally, cutaneous T-cell proliferations include a new provisional entity, primary cutaneous acral CD8-positive T-cell lymphoma, and reclassification of primary small/medium CD4-positive T-cell lymphoma as lymphoproliferative disorder.

Breast Implant-associated Anaplastic Large Cell Lymphoma: An Evidence-based Systematic Review

OBJECTIVE

This evidence-based systematic review synthesizes and critically appraises current clinical recommendations and advances in the diagnosis and treatment of BIA-ALCL. This review also aims to broaden physician awareness across diverse specialties, particularly among general practitioners, breast surgeons, surgical oncologists, and other clinicians who may encounter patients with breast implants in their practice.

BACKGROUND

BIA-ALCL is an emerging and treatable immune cell cancer definitively linked to textured-surface breast implants. Although the National Comprehensive Cancer Network (NCCN) consensus guidelines and other clinical recommendations have been established, the evidence supporting these guidelines has not been systematically studied. The purpose of this evidence-based systematic review is to synthesize and critically appraise current clinical guidelines and recommendations while highlighting advances in diagnosis and treatment and raising awareness for this emerging disease.

METHODS

This evidence-based systematic review evaluated primary research studies focusing on the diagnosis and treatment of BIA-ALCL that were published in PubMed, Google Scholar, and other scientific databases through March 2020.

RESULTS AND CONCLUSIONS

The clinical knowledge of BIA-ALCL has evolved rapidly over the last several years with major advances in diagnosis and treatment, including en bloc resection as the standard of care. Despite a limited number of high-quality clinical studies comprised mainly of Level III and Level V evidence, current evidence aligns with established NCCN consensus guidelines. When diagnosed and treated in accordance with NCCN guidelines, BIA-ALCL carries an excellent prognosis.

UK Guidelines on the Diagnosis and Treatment of Breast Implant-Associated Anaplastic Large Cell Lymphoma on behalf of the Medicines and Healthcare products Regulatory Agency Plastic, Reconstructive and Aesthetic Surgery Expert Advisory Group

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon T-cell non-Hodgkin Lymphoma (NHL) associated with breast implants. Raising awareness of the possibility of BIA-ALCL in anyone with breast implants and new breast symptoms is crucial to early diagnosis. The tumour begins on the inner aspect of the peri-implant capsule causing an effusion, or less commonly a tissue mass to form within the capsule, which may spread locally or to more distant sites in the body. Diagnosis is usually made by cytological, immunohistochemical and immunophenotypic evaluation of the aspirated peri-implant fluid: pleomorphic lymphocytes are characteristically anaplastic lymphoma kinase (ALK)-negative and strongly positive for CD30. BIA-ALCL is indolent in most patients but can progress rapidly. Surgical removal of the implant with the intact surrounding capsule (total en-bloc capsulectomy) is usually curative. Late diagnosis may require more radical surgery and systemic therapies and although these are usually successful, poor outcomes and deaths have been reported. By adopting a structured approach, as suggested in these guidelines, early diagnosis and successful treatment will minimise the need for systemic treatments, reduce morbidity and the risk of poor outcomes.

Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL)

Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare T-cell non-Hodgkin lymphoma characterized as CD30 positive and anaplastic lymphoma kinase (ALK) negative. In 2016, the World Health Organization declared BIA-ALCL as a new disease entity. The first case of BIA-ALCL was reported in 1997, and as of July 2019, the United States Food and Drug Administration had cited a total of 573 United States and global medical device reports of BIA-ALCL, including 33 deaths. In all clinical case reports, except for those with unknown clinical history, the patient had received at least one textured surface breast implant. Although the etiology is not yet clear, chronic inflammation has been proposed as a potential precursor to tumorigenesis. The most common presentation of BIA-ALCL is peri-implant fluid collection following aesthetic or reconstructive implantation with textured surface breast implants. It can be accompanied by breast swelling, asymmetry, pain, skin lesions, lymphadenopathy, and B-type symptoms. Most cases are detected on average 7 to 10 years after implantation. Diagnostic specimens can be obtained with fine-needle aspiration or biopsy. BIA-ALCL is CD30 positive, epithelial membrane antigen positive, and ALK negative. It can be cured with complete surgical excision at the T1–T3 stage.

Breast Implant-associated Anaplastic Large Cell Lymphoma

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon lymphoproliferative disorder, mainly associated with textured implants. The average time from the breast implants to the development of BIA-ALCL is about 7 to 10 years, and the median age at the time of diagnosis is in the mid-50s. The exact incidence and prevalence of BIA-ALCL are not known. The pathogenesis of BIA-ALCL remains unclear. Different theories have been postulated, including immune response to textured implants, subclinical bacterial infection, and genetic predisposition. However, none of those theories have yet been proven to be causal in the pathogenesis of BIA-ALCL. BIA-ALCL is histologically similar to but clinically distinct from other CD30-positive T-cell lymphomas such as anaplastic lymphoma kinase-positive, anaplastic lymphoma kinase-negative, and primary cutaneous ALCL. The revised World Health Organization classification of lymphoid neoplasm in 2016 recognized BIA-ALCL as a provisional entity. Suspected cases need proper evaluation and workup to confirm the diagnosis. Surgical resection should be considered for all the cases. However, adjuvant radiotherapy and anthracycline-based chemotherapy are warranted for locally advanced and advanced cases.

Advising patients about breast implant associated anaplastic large cell lymphoma

The United States Food and Drug Administration (FDA) recently recognized the necessity for improved patient education and public awareness of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL). BIA-ALCL is an uncommon T-cell lymphoma that can arise years after placement of a textured breast implant or tissue expander. Patients and providers would greatly benefit from a broader awareness of BIA-ALCL and how it presents with both common and rare symptoms. Disease awareness can be improved with specific steps moving forward. This includes improved counseling about annual recommendations from the FDA, standard of care guidelines, current estimates of disease prevalence, and manufacturer-specific risk for developing the malignancy. Informed consent for implant-based breast surgery should include a discussion of BIA-ALCL, symptoms, inherent risks and alternatives. Consideration should be given for reasonable efforts to retroactively contact patients with textured implants to inform them of recent regulatory actions as well as the risk of developing the disease and the signs and symptoms to watch for. Where risk can be reduced, all steps should be taken to ensure patient safety. In keeping with our commitment to patient safety, the strategies moving forward for implant-based breast surgery should be marked by patient awareness, physician vigilance, and defined by evidence-based diagnosis and treatment.

Etiology of Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL): Current Directions in Research

Simple Summary

The first report of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) was in 1997. Although BIA-ALCL develops around breast implants, it is considered a cancer of the immune system and not a cancer of the breast ducts or lobules. Nearly all confirmed cases to date have been associated with textured surface (versus smooth surface) breast implants. As physicians have become more aware of BIA-ALCL, so has the number of reported cases, although the number of cases remains low. In most instances, patients have an excellent prognosis following removal of the breast implant and its surrounding fibrous capsule. Many theories on factors that trigger the development of BIA-ALCL, such as the presence of bacteria, have been proposed. However, the sequence(s) of events that follow the initial triggering event(s) have not been fully determined. This article summarizes the current scientific knowledge on the development of BIA-ALCL.

Abstract

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a CD30-positive, anaplastic lymphoma kinase-negative T-cell lymphoma. Where implant history is known, all confirmed cases to date have occurred in patients with exposure to textured implants. There is a spectrum of disease presentation, with the most common occurring as a seroma with an indolent course. A less common presentation occurs as locally advanced or, rarely, as metastatic disease. Here we review the immunological characteristics of BIA-ALCL and potential triggers leading to its development. BIA-ALCL occurs in an inflammatory microenvironment with significant lymphocyte and plasma cell infiltration and a prominent Th1/Th17 phenotype in advanced disease. Genetic lesions affecting the JAK/STAT signaling pathway are commonly present. Proposed triggers for the development of malignancy include mechanical friction, silicone implant shell particulates, silicone leachables, and bacteria. Of these, the bacterial hypothesis has received significant attention, supported by a plausible biologic model. In this model, bacteria form an adherent biofilm in the favorable environment of the textured implant surface, producing a bacterial load that elicits a chronic inflammatory response. Bacterial antigens, primarily of Gram-negative origin, may trigger innate immunity and induce T-cell proliferation with subsequent malignant transformation in genetically susceptible individuals. Although much remains to be elucidated regarding the multifactorial origins of BIA-ALCL, future research should focus on prevention and treatment strategies, recognizing susceptible populations, and whether decreasing the risk of BIA-ALCL is possible.

UK Guidelines on the Diagnosis and Treatment of Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL) on behalf of the Medicines and Healthcare products Regulatory Agency (MHRA) Plastic, Reconstructive and Aesthetic Surgery Expert Advisory Group (PRASEAG)

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon T cell Non-Hodgkin Lymphoma (NHL) associated with breast implants. Raising awareness of the possibility of BIA-ALCL in anyone with breast implants and new breast symptoms is crucial to early diagnosis. The tumour begins on the inner aspect of the peri-implant capsule causing an effusion, or less commonly a tissue mass to form within the capsule, which may spread locally or to more distant sites in the body. Diagnosis is usually made by cytological, immunohistochemical and immunophenotypic evaluation of the aspirated peri-implant fluid: pleomorphic lymphocytes are characteristically anaplastic lymphoma kinase (ALK) negative and strongly positive for CD30. BIA-ALCL is indolent in most patients but can progress rapidly. Surgical removal of the implant with the intact surrounding capsule (total en-bloc capsulectomy) is usually curative. Late diagnosis may require more radical surgery and systemic therapies and although these are usually successful, poor outcomes and deaths have been reported. By adopting a structured approach, as suggested in these guidelines, early diagnosis and successful treatment will minimize the need for systemic treatments, reduce morbidity and the risk of poor outcomes.

The Crucial Role of Surgical Treatment in BIA-ALCL Prognosis in Early- and Advanced-Stage Patients

BACKGROUND

Studies on breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) are trying to optimize medical and surgical treatments for early and advanced stages of this disease. The aim of this article is to share the experience gathered on the authors' prospectively collected 46 well-documented cases.

METHODS

Italian physicians are obliged to report BIA-ALCL cases to the Italian Ministry of Health. Because of this cooperation with health care professionals, the competent authority has coordinated and centralized the collection of information for each patient in 46 cases of BIA-ALCL. Statistical analyses with cumulative incidence and corresponding 95 percent confidence interval are provided for each year, dividing the number of new cases that occurred in a defined year and the population at risk of experiencing BIA-ALCL during the same year.

RESULTS

The mean time to the onset of symptoms is reduced to 6.4 ± 3.77 years (range, 1 to 22 years). Increased knowledge has also shortened the average time to diagnosis, at 7.2 ± 3.71 years (range, 2 to 22 years). A late seroma appears in 91 percent of cases. The patient who died underwent limited surgery. The Italian incidence has been estimated as 2.8 per 100,000 patients receiving implants (95 percent CI, 0.88 to 4.84) in 2015; 2.1 (95 percent CI, 0.43 to 3.86) in 2016; 3.2 (95 percent CI, 1.11 to 5.31) in 2017; and 3.5 (95 percent CI, 1.36 to 5.78) in 2018.

CONCLUSION

Although the number of cases has risen slightly, BIA-ALCL is still a rare disease with a stable incidence, easily recognized and with a favorable prognosis also in advanced stages if complete surgical excision is performed.

UK Guidelines on the Diagnosis and Treatment of Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL) on behalf of the Medicines and Healthcare products Regulatory Agency (MHRA) Plastic, Reconstructive and Aesthetic Surgery Expert Advisory Group (PRASEAG)

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon T cell Non-Hodgkin Lymphoma (NHL) associated with breast implants. Raising awareness of the possibility of BIA-ALCL in anyone with breast implants and new breast symptoms is crucial to early diagnosis. The tumour begins on the inner aspect of the peri-implant capsule causing an effusion, or less commonly a tissue mass to form within the capsule, which may spread locally or to more distant sites in the body. Diagnosis is usually made by cytological, immunohistochemical and immunophenotypic evaluation of the peri-implant fluid: pleomorphic lymphocytes are characteristically anaplastic lymphoma kinase (ALK) negative and strongly positive for CD30. BIA-ALCL is indolent in most patients but can progress rapidly. Surgical removal of the implant with the intact surrounding capsule (total en-bloc capsulectomy) is usually curative. Late diagnosis may require more radical surgery and systemic therapies and although these are usually successful, poor outcomes and deaths have been reported. By adopting a structured approach, as suggested in these guidelines, early diagnosis and successful treatment will minimize the need for systemic treatments, reduce morbidity and the risk of poor outcomes. These guidelines provide an evidence-based and systematic framework for the assessment and treatment of patients with suspected or proven BIA-ALCL and are aimed at all clinicians involved in the care of people with breast implants.

Pleuroperitoneal (Denver) Shunt for Recurrent Nonmalignant Breast Seroma in a Metastatic Breast Cancer Patient

Pleuroperitoneal (Denver) shunts have been used primarily for palliation of refractory malignant and chylous peritoneal and pleural collections.^1–5 We used a pleuroperitoneal (Denver) shunt for a recurrent, nonmalignant breast seroma in the palliation of metastatic breast cancer as a novel use of this shunt.

Endoscopic transaxillary capsulectomy with immediate reimplantation performed as a single-operator outpatient procedure

Capsulectomy is a standard treatment for capsular contracture after breast augmentation. Incision via the endoscopic transaxillary approach is generally preferred by Asian women, but relevant literature addressing endoscopic transaxillary capsulectomy is limited. This study described the techniques of endoscopic transaxillary capsulectomy with reimplantation performed as a single-operator outpatient procedure. This retrospective study included patients with diagnosis of capsular contracture underwent endoscopic transaxillary capsulectomy with immediate reimplantation between January 1, 2013 and December 31, 2017. Data regarding history, implant type, operation time, duration of postoperative drainage, and complications were collected and analyzed. A total of 42 patients with a mean age of 36 years were included (11 unilateral and 31 bilateral capsulectomy). Total capsulectomy was performed on four (10%) patients for previous subglandular augmentation, and anterior capsulectomy was performed on 38 (91%) patients for previous submuscular augmentation. Mean sizes of previous and new (or reused) implants were 268 ml (median 283 ml, SD 57) and 317 ml (median 307 ml, SD 49), respectively. Mean operation time for unilateral and bilateral procedures were 4 h 15 min and 6 h 28 min, respectively. Postoperatively, mean duration of wound drainage was 10 (SD 3) days. Six (14%) patients experienced complications, including two (5%) patients with seroma, two (5%) with hematoma, one (2%) with infection, and four (10%) with recurrent capsular contracture. The four recurrent cases underwent repeat endoscopic transaxillary capsulectomy. All of the 42 patients had satisfactory clinical and esthetic outcomes. This study demonstrated the feasibility of endoscopic transaxillary capsulectomy with immediate reimplantation performed as an ambulatory surgery by a single surgeon who is in a stable and comfortable sitting position without the aid of a surgical assistant.

A Rare Case of a Transgender Female With Breast Implant-Associated Anaplastic Large Cell Lymphoma Treated With Radiotherapy and a Review of the Literature

We are reporting a case of a 54-year-old transgender female with a history of breast augmentation with bilateral silicone implants. Seventeen years later, she presented with an enlarging right breast mass. Pathology confirmed breast implant–associated anaplastic large cell lymphoma (Ann Arbor Stage IIE, TNM Stage III BIA-ALCL). The patient underwent bilateral capsulectomy, sentinel lymph node biopsy with adjuvant CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) chemotherapy, and radiotherapy to the right chest, axilla, and supraclavicular lymph nodes. BIA-ALCL is a rare entity, especially in transgender females. We report this case and a review of the literature in this report.

Incidence of benign and malignant peri-implant fluid collections and masses on magnetic resonance imaging in women with silicone implants

BACKGROUND

To assess the incidence of benign and malignant peri-implant fluid collections and/or masses on magnetic resonance imaging (MRI) in women with silicone implants who are being screened for silent implant rupture.

METHODS

The institutional review board approved this HIPAA-compliant retrospective study and waived informed consent. Women who underwent silicone implant oncoplastic and/or cosmetic surgery and postoperative implant-protocol MRI from 2000 to 2014 were included. Peri-implant fluid collections and/or masses were measured volumetrically. A benign peri-implant fluid collection and/or mass was pathologically proven or defined as showing 2 years of imaging and/or clinical stability. A malignant peri-implant fluid collection was pathologically proven. Incidence of peri-implant fluid collections and/or masses and positive predictive value (PPV) were calculated on a per-patient level using proportions and exact 95% confidence intervals (CIs). Fisher's exact test was used in the analysis to test statistical significance pre-defined as P-value < 0.05.

RESULTS

A total of 1070 women with silicone implants were included (mean age, 50.7 years; range, 40.4-53.8). Median time between reconstructive surgery and first MRI was 88.9 months (range, 0.8-1363.3). Eighteen women (1.7%) had a peri-implant fluid collection and/or mass: 15/18 (83.3%) had adequate follow-up; and only 1/15 was malignant implant associated anaplastic large cell lymphoma, with a PPV of 6.7% (95% CI: 0.003-0.0005). The median peri-implant fluid collection size was 89 mL (range, 18-450 mL).

CONCLUSION

Peri-implant fluid collections and/or masses identified at silicone implant protocol breast MR imaging are rarely seen 24 months after reconstructive surgery. Image-guided fine-needle aspiration with flow cytometry may be warranted to evaluate for implant-associated lymphoma.

Breast Implant-Associated Anaplastic Large-Cell Lymphoma: Current Understanding and Recommendations for Management

Worldwide, millions of women live with breast implants. Therefore, it is important that physicians be aware of an uncommon but possibly serious complication arising from breast implants: breast implant-associated anaplastic large cell lymphoma (BIA-ALCL). Breast implant-associated anaplastic large-cell lymphoma most commonly presents as a delayed fluid collection around a textured breast implant or as a mass in the capsule surrounding the implant. The exact pathogenesis of the disease remains unclear. The neoplastic cells of BIA-ALCL show strong uniform staining for CD30 and are consistently negative for activin receptor-like kinase 1. Patients with confirmed cases should be referred to a lymphoma specialist or breast medical oncologist for a complete oncologic evaluation before any surgical intervention. For disease confined to the fluid accumulation or capsule, or both, surgical removal of the implant and complete capsulectomy is the preferred treatment. Postoperative chemotherapy or radiation, or both, are not considered necessary for patients with limited-stage disease and are reserved for advanced disease stages. Generally, BIA-ALCL is a local disease that follows an indolent course and has an excellent prognosis. Although complete remission of disease has occurred in patients with BIA-ALCL, median overall survival is reduced. As of March 2018, approximately 529 unique, confirmed BIA-ALCL cases had been reported in 23 countries. To date, 16 patients have died from BIA-ALCL, and all had extracapsular involvement. The aim of this article is to summarize the diagnosis, evaluation, and management of BIA-ALCL, based on established guidelines, for all practitioners who may care for patients with breast implants.

Risk of breast implant associated anaplastic large cell lymphoma (BIA-ALCL) in a cohort of 3546 women prospectively followed long term after reconstruction with textured breast implants

BACKGROUND

The risk of BIA-ALCL for patients with textured breast implants has been estimated between 1/2832 and 1/30,000 women. Existing studies estimating the numbers exposed and at risk, may have under reported cases, and/or lacked comprehensive follow-up. Our objective is to determine the risk of BIA-ALCL in a defined cohort of patients reconstructed with macro-textured breast implants and consistently followed long-term.

METHODS

A prospective cohort study was conducted in patients who underwent breast reconstruction by a single surgeon at Memorial Sloan Kettering Cancer Center (MSKCC) from December 1992 to December 2017. Major events related to implants were prospectively recorded. We identified cases of BIA-ALCL by cross-checking clinical, pathology and external records data. Patients were followed until lymphoma occurrence or last follow-up. The primary outcomes were incidence rate per person-years and cumulative incidence.

RESULTS

From 1992 to 2017, 3546 patients underwent 6023 breast reconstructions, mainly after breast cancer removal, or contralateral prophylactic mastectomy, using macro-textured surface expanders and implants. All reconstructions were performed by a single surgeon (PGC). Median follow-up was 8.1 years (range, 3 months - 30.9 years). Ten women, 1/354, developed ALCL after a median exposure of 11.5 years (range, 7.4-15.8 years). Overall risk of BIA-ALCL in our cohort is 1/355 women or 0.311 cases per 1000 person-years (95% CI 0.118 to 0.503).

DISCUSSION

This study, the first to evaluate the risk of macro-textured breast implants from a prospective database with long term follow-up, demonstrates that the incidence rate of BIA-ALCL may be higher than previously reported. These results can help inform implant choice for women undergoing breast reconstruction.

Is breast implant-associated anaplastic large cell lymphoma a hazard of breast implant surgery?

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) may occur after reconstructive or aesthetic breast surgery. Worldwide, approximately 1.7 million breast implant surgeries are performed each year. To date, over 500 cases of BIA-ALCL have been reported around the world, with 16 women having died. This review highlights the most important facts surrounding BIA-ALCL. There is no consensus regarding the true incidence rate of BIA-ALCL as it varies between countries, is probably significantly under-reported and is difficult to estimate due to the true number of breast prostheses used largely being unknown. BIA-ALCL develops in the breast mostly as a seroma surrounding the implant, but contained within the fibrous capsule, or more rarely as a solid mass that can become invasive infiltrating the chest wall and muscle, in some instances spreading to adjacent lymph nodes, in these cases having a far worse prognosis. The causation of BIA-ALCL remains to be established, but it has been proposed that chronic infection and/or implant toxins may be involved. What is clear is that complete capsulectomy is required for treatment of BIA-ALCL, which for early-stage disease leads to cure, whereas chemotherapy is needed for advanced-stage disease, whereby improved results have been reported with the use of brentuximab. A worldwide database for BIA-ALCL and implants should be supported by local governments.

Breast Implant-associated Anaplastic Large Cell Lymphoma Affecting a Neosubpectoral Pocket

The complications associated with breast implants are under perpetual scrutiny to maximize patient safety. In this era of plastic surgery, a new concern being addressed is breast implant-associated anaplastic large cell lymphoma (BIA-ALCL). Patients with BIA-ALCL most commonly present several years after implant placement with a periprosthetic fluid collection. The body of literature and reports of BIA-ALCL continues to grow with additional nuances in proposed causes as well as management. Most recently, this has led to a recall of breast implants manufactured utilizing a specific texturing. We describe here the time course, diagnosis, and management of BIA-ALCL in a 52-year-old patient who underwent submuscular implant-based reconstruction and subsequent revision of that reconstruction with the creation of a neosubpectoral pocket. The patient was managed in accordance with current guidelines under the supervision of a multidisciplinary team. In our review of the literature, several case reports, case series, and guideline publications were identified. Current guidelines for management are based on the staging of BIA-ALCL at diagnosis and span from only surgical with implant removal, excision of the lymphoma, and excision of the surrounding fibrous capsule to addition of chemotherapeutic regimens or radiation for distant and locally advanced disease. 

Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL) and the Textured Breast Implant Crisis

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon T-cell, CD-30+/ALK lymphoma. Late (9 years) periprosthetic fluid (seroma) is the most common presentation (90% of the cases). A combination of textured breast implant, bacterial contamination, and genetic predisposition seems to be necessary for BIA-ALCL to occur. There are 35 million patients with implants in the world, and at the present moment, 573 cases of BIA-ALCL have been reported. The risk of developing BIA-ALCL in Australia varies from 1:2832 to 1:86,029, with texture grades 3 and 4 seeming to pose a higher risk than grades 2 and 1. NCCN has established guidelines for diagnosis and treatment, and early diagnosis is the key to cure. At an early stage and for the vast majority of patients, the treatment consists of capsulectomy and implant removal. However, at stages II to IV, a systemic treatment is warranted, including chemotherapy, radiotherapy (residual disease), and brentuximab vedotin. The majority of patients can be cured, and complete capsular removal is the most important factor. So far, 33 patients have died from BIA-ALCL worldwide, with deaths related to delay in diagnosis and treatment. Textured implants have been in the midst of the current implant crisis, and Biocell was recalled worldwide after the latest FDA update on the disease. At the present moment, no medical society or regulatory agency has recommended implant removal. It is about time that we start robust breast implant registries to determine risks. Besides, based on scientific criteria, we must consider all the benefits and risks associated with the available breast devices.Level of Evidence III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

Breast Implant-Associated Bilateral B-Cell Lymphoma

Lymphomas associated with implants are predominantly of T-cell type-with anaplastic large cell lymphoma (ALCL) being most reported. That said, to date, 6 cases of B-cell lymphoma associated with breast implants have been reported. All cases exhibited unilateral breast involvement. Here, the authors report a case of low-grade B-cell lymphoma occurring bilaterally in a 34-year-old woman with a history of Poly Implant Prosthese silicone implants at age 20, T-cell angioimmunoblastic lymphoma, and subsequent myeloablative double cord blood transplantation. Lymphoma cells were positive for CD20, CD5, BCL-2, CD21, CD23, IgD, IgM, with very low Ki-67 of 1%. Nevertheless, cases of ALCL associated with breast implants are rare but much more documented in the literature than B-cell lymphomas associated with breast implants, as in this patient. Identification of a relationship between breast cancer and silicone is still ongoing in the literature, with long-term clinical follow up required. More research will be necessary to fully characterize the occurrence, course, and association of this disease with breast implants in order to properly guide diagnosis and management.

LEVEL OF EVIDENCE: 5

Lymphomas arising in immune-privileged sites: insights into biology, diagnosis, and pathogenesis

Session 2 of the 2018 European Association of Hematopathology/Society for Hematopathology Workshop focused on lymphomas arising in immune-privileged sites: both lymphomas arising in the traditionally described "immune sanctuary" sites of the central nervous system (CNS) and testes, as well as those arising at sites of local immune privilege. Primary CNS large B cell lymphoma and primary testicular large B cell lymphoma were discussed, and the biology of these unique tumors was highlighted by several cases showing the classic mutation profile including MYD88 L265P and CD79B. The tendency of these tumors to involve both the CNS and testis was also reinforced by several cases. Four cases of low-grade B cell lymphomas (LGBCL) of the CNS were discussed. Two were classic Bing-Neel syndrome associated with LPL, and two were LGBCL with plasmacytic differentiation and amyloid deposition without systemic disease. Rare examples of systemic T and NK cell lymphomas involving the CNS were also discussed. Several cases of breast implant-associated anaplastic large cell lymphoma (BI-ALCL) were submitted showing the typical clinicopathologic features. These cases were discussed along with a case with analogous features arising in a patient with a gastric band implant, as well as large B cell lymphomas arising alongside foreign materials. Finally, large B cell lymphomas arising in effusions or localized sites of chronic inflammation (fibrin-associated diffuse large B cell lymphoma [DLBCL] and DLBCL associated with chronic inflammation) were described. The pathogenesis of all of these lymphomas is believed to be related to decreased immune surveillance, either innate to the physiology of the organ or acquired at a local site.

Finding Consensus After Two Decades of Breast Implant-Associated Anaplastic Large Cell Lymphoma

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an emerging and indolent, but potentially fatal cancer of the immune system that can develop around textured-surface breast implants. The World Health Organization first recognized BIA-ALCL as a unique clinical entity in 2016. To date, over 600 confirmed cases have been reported worldwide. BIA-ALCL most commonly presents with disease confined to the capsule, as a seroma or a mass adjacent to the implant. While BIA-ALCL has a fairly indolent clinical course, with an excellent prognosis in early stage disease, disseminated cancer and death have also been reported. In this review, the authors focus on the early diagnosis and treatment, including reconstructing the breast following BIA-ALCL, and also discuss recently updated National Comprehensive Cancer Network guidelines. They also review the current epidemiology and risk factors associated with BIA-ALCL. Finally, they discuss important medicolegal considerations and the bioethics surrounding the continued use of textured-surface breast implants.

The Evolution of Breast Implants

Breast augmentation remains one of the most commonly performed aesthetic procedures in the United States and worldwide. Throughout the last few decades, the implants used for this procedure have undergone significant advancements, which has allowed surgeons to provide safer and more aesthetically pleasing outcomes. This article discusses the history of breast implants since their invention in 1962. Particular emphasis is given to the evolution of silicone implants with its many challenges, which has resulted in the development of the currently used fourth- and fifth-generation devices. Knowledge of these advances will allow physicians to more critically evaluate their results, and also will encourage them to provide more up-to-date scientific data on these devices to further improve the clinical outcomes of their patients.

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL): an overview of presentation and pathogenesis and guidelines for pathological diagnosis and management

AIMS

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon complication associated largely with textured implants. It is important that the symptoms associated with BIA-ALCL are recognised and that robust pathways are in place to establish the diagnosis. The aim of this paper is to review what is known of the incidence of the disease, current thoughts on pathogenesis, patterns of presentation and pathological features to provide standard guidelines for its diagnosis.

METHODS AND RESULTS

Systematic review of the literature via PubMed covering cases series, modes of presentation, cytological, histological and immunohistochemical features and disease outcome. Since 1997, 518 cases throughout 25 countries have been registered on the American Society of Plastic Surgeons PROFILE registry, with an estimated risk for women with an implant of one to three per million per year. It most frequently presents as a late-onset accumulation of seroma fluid, sometimes as a mass lesion. The neoplastic cells are highly atypical, consistently strongly positive for CD30, with 43-90% also positive for EMA, and all are ALK-negative. Behaviour is best predicted using a staging system for solid tumours.

CONCLUSION

BIA-ALCL is a rare but important complication of breast implants. While characterised by CD30-positive neoplastic cells this must be interpreted with care, and we provide pathological guidelines for the robust diagnosis of this lesion as well as the most appropriate staging system and management strategies. Finally, in order to generate more accurate data on incidence, we recommend mechanisms for the routine central reporting of all cases.

Breast Implant-Associated Lymphoma

BACKGROUND

There has been increasing evidence in recent years that breast implants can, in rare cases, be associated with the development of an anaplastic large-cell lymphoma (ALCL).

METHODS

This review is based on relevant publications retrieved by a selective search in PubMed for articles that appeared from the time of the initial description of breast-implant-associated ALCL onward (1997 to January 2018), and by a further search in German nationwide databases.

RESULTS

516 pathologically confirmed cases of breast-implant-associated (BIA) ALCL were documented around the world until February 2018; seven of these arose in Germany and were reported to the Federal Institute for Drugs and Medical Devices (Bundesinstitut für Arzneimittel und Medizinprodukte, BfArM). In approximately 80% of the affected women, the BIA-ALCL manifested itself as a late-developing seroma at the implant site; in the rest, as a solid tumor with or without an accompanying seroma. The mean implant exposure time ranged from 7 to 13 years on average. 16 fatalities have been reported worldwide. Among the 7 cases reported in Germany, four women had undergone breast reconstruction with implants after breast cancer surgery, and two had undergone breast augmentation surgery. In all patients, the entire capsule-and-implant unit was resected. One patient underwent chemotherapy and one further patient underwent chemotherapy and adjuvant radiotherapy.

CONCLUSION

The risk that a woman with breast implants will develop a primary anaplastic large-cell lymphoma is estimated at 0.35 to 1 case per million persons per year. The incidence of implant-associated ALCL is thus very low, yet nevertheless markedly higher than that of other primary lymphomas of the breast. Because of the low case numbers, recommendations for the diagnostic evaluation and treatment of this entity have not been adequately evaluated. Treatment with primary curative intent for BIA-ALCL confers a much better prognosis than when performed for a systemic ALCL. Whenever a patient with a breast implant presents with a late-developing seroma, BIA-ALCL should be included in the differential diagnosis. This diagnosis is reportable.

Breast Implant-Associated Anaplastic Large-Cell Lymphoma: Why Must We Learn About It?

Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare, breast implant-associated T-cell lymphoma in which CD30 is expressed and anaplastic lymphoma kinase (ALK) expression is absent. However, despite the low risk of developing the disease, more information on BIA-ALCL is necessary, because the number of women with breast implants has been increasing worldwide; Brazil is one of the main markets for this type of implant. The objectives of this review are to clarify the issue of BIA-ALCL occurrence after risk-reducing mastectomy, to show the importance of this disease, and to raise awareness among the medical community about this rare pathologic condition. In 2016, BIA-ALCL was included by WHO in the new classification of lymphomas, and this demonstrates the attention that medical entities should give to this disease. Thus, awareness about BIA-ALCL must be broadened among the medical societies and regulatory authorities, both to foster better approaches to this disease, which should be evaluated in a multidisciplinary manner, and to provide better knowledge among health care professionals and the target population about the use of implants.

Overview of Cutaneous T-Cell Lymphomas

Non-Hodgkin's lymphoma (NHL) encompasses a diverse collection of systemic and primary cutaneous lymphomas. Cutaneous T-cell lymphomas (CTCLs) represent about 13% of all NHLs, which are further subdivided into a heterogeneous group with vastly different presentations and histologic features. Diagnosis requires integration of clinical, pathologic, and molecular features. Among CTCLs, mycosis fungoides and Sézary syndrome are the most prevalent. Treatment is aimed at limiting morbidity and halting disease progression. Hematopoietic stem cell transplantation is the only therapy with curative intent.

Breast implant-associated anaplastic large cell lymphoma, an under-recognised entity

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a rare form of T-cell lymphoma, recently linked to the use of certain types of breast implants. Although rare, BIA-ALCL is being increasingly recognised and radiologists can play an important role in its early diagnosis. BIA-ALCL is thought to be related to chronic inflammation from indolent infection of the biofilm surrounding implants leading to malignant transformation of activated T cells in genetically susceptible individuals. Clinical features include breast enlargement or asymmetry, discomfort, heaviness and/or a palpable mass in the context of long-standing implant(s). Ultrasound is the primary imaging modality, and the presence of more than a trace of peri-implant fluid should prompt consideration of aspiration for cytology, flow cytometry and microbiological analysis. This article reviews the clinical, imaging and pathology features of BIA-ALCL. In addition, the current recommended management guidelines for suspected cases are discussed.

The bioengineered prosthetic breast reconstruction: advancements, evidence, and outcomes

Recent advancements in prosthetic breast reconstruction have provided the foundation for the bioengineered breast. These advancements include improved mastectomy techniques, autologous fat grafting, acellular dermal matrices (ADMs), and improved devices. Device-based breast reconstruction has evolved from subcutaneous, partial or total subpectoral, and now to prepectoral placement of devices. The evidence demonstrating the safety and efficacy of the bioengineered breast continues to increase. This manuscript will review the fundamental components of the bioengineered breast and provide an update of the current evidence.

Breast Reconstruction Following Breast Implant-Associated Anaplastic Large Cell Lymphoma

BACKGROUND

Standard of care treatment of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) involves surgical resection with implant removal and complete capsulectomy. We report a case series of BIA-ALCL reconstruction with proposals for timing and technique selection.

METHODS

We retrospectively reviewed and prospectively enrolled all BIA-ALCL patients at 2 tertiary care centers and 1 private plastic surgery practice from 1998 to 2017. Demographics, treatment, reconstruction, pathology staging, patient satisfaction, and oncologic outcomes were reviewed.

RESULTS

We treated 66 consecutive BIA-ALCL patients and 18 (27%) received reconstruction. Seven patients (39%) received immediate reconstruction, and 11 (61%) received delayed reconstruction. Disease stage at presentation was IA (T1N0M0 disease confined to effusion or a layer on luminal side of capsule with no lymph node involvement and no distant spread) in 56%, IB in 17%, IC (T3N0M0 cell aggregates or sheets infiltrating the capsule, no lymph node involvement and no distant spread) in 6%, IIA (T4N0M0 lymphoma infiltrating beyond the capsule, no lymph node involvement and no distant spread) in 11%, and III in 11%. Types of reconstruction included smooth implants (72%), immediate mastopexy (11%), autologous flaps (11%), and fat grafting (6%). Outcomes included no surgical complications, but 1 patient progressed to widespread bone metastasis (6%); ultimately, all patients achieved complete remission. Ninety-four percent were satisfied/highly satisfied with reconstructions, whereas 6% were highly unsatisfied with immediate smooth implants.

CONCLUSIONS

Breast reconstruction following BIA-ALCL management can be performed with acceptable complications if complete surgical ablation is possible. Immediate reconstruction is reserved for disease confined to capsule on preoperative positive emission tomography/computed tomography scan. Genetic predisposition and bilateral cases suggest that BIA-ALCL patients should not receive textured implants. Autologous options are preferable for implant adverse BIA-ALCL patients. Patients with extensive disease at presentation should be considered for 6- to 12-month delayed reconstruction with interval positive emission tomography/computed tomography evaluation.

Characteristics and Treatment of Advanced Breast Implant-Associated Anaplastic Large Cell Lymphoma

BACKGROUND

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) most commonly follows an indolent course; however, a subset of patients display more advanced disease marked by recurrent and disseminated growth refractory to treatment. This study evaluated outcomes of advanced disease, specifically bilateral disease, lymph node involvement, organ metastasis, and/or disease-related death.

METHODS

Published cases of BIA-ALCL from 1997 to 2018 and unpublished cases at the authors' institution were retrospectively reviewed, and patients with advanced disease were selected. Treatment and outcomes were compared against a control of BIA-ALCL subjects without advanced disease.

RESULTS

Thirty-nine patients with advanced BIA-ALCL were identified who had bilateral disease (n = 7), lymph node and organ metastasis (stage IIB-IV, n = 24), and disease-related death (n = 8). Sixty-five patients were included in a comparison control group (stage 1A-1C). Treatment types for advanced disease patients were complete surgery, n = 16 (55.2%); limited surgery, n = 19 (65.5%); chemotherapy, n = 26 (89.7%); salvage chemotherapy, n = 11 (37.9%); radiation, n = 15 (51.7%); and autologous stem cell transplant, n = 6 (20.7%). The rates of complete remission for the bilateral and lymphadenopathy groups were 4 of 7 (57%, P < 0.001) and 16 of 24 (67%, P = 0.128), respectively. Compared with the control group, advanced disease patients had significantly longer time from diagnosis to definitive surgery (21 versus 8 months, P = 0.039) and a lower rate of complete surgery (59% versus 88%, P = 0.004).

CONCLUSIONS

Advanced disease BIA-ALCL may be a consequence of a delay or suboptimal treatment of BIA-ALCL. Optimal adjuvant chemotherapy and indications for radiation for BIA-ALCL patients with advanced features are not yet clearly defined. Advanced disease is the end of the spectrum of cancer stages, and these patients substantiate the World Health Organization classification of BIA-ALCL as a lymphoma rather than benign or lymphoproliferative.

Current Risk Estimate of Breast Implant-Associated Anaplastic Large Cell Lymphoma in Textured Breast Implants

BACKGROUND

With breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) now accepted as a unique (iatrogenic) subtype of ALCL directly associated with textured breast implants, we are now at a point where a sound epidemiologic profile and risk estimate are required. The aim of this article is to provide a comprehensive and up-to-date global review of the available epidemiologic data and literature relating to the incidence, risk, and prevalence of BIA-ALCL.

METHODS

All current literature relating to the epidemiology of BIA-ALCL was reviewed. Barriers relating to sound epidemiologic study were identified, and trends relating to geographical distribution, prevalence of breast implants, and implant characteristics were analyzed.

RESULTS

Significant barriers exist to the accurate estimate of both the number of women with implants (denominator) and the number of cases of BIA-ALCL (numerator), including poor registries, underreporting, lack of awareness, cosmetic tourism, and fear of litigation. The incidence and risk of BIA-ALCL have increased dramatically from initial reports of 1 per million to current estimates of 1/2,832, and is largely dependant on the "population" (implant type and characteristics) examined and increased awareness of the disease.

CONCLUSIONS

Although many barriers stand in the way of calculating accurate estimates of the incidence and risk of developing BIA-ALCL, steady progress, international registries, and collegiality between research teams are for the first time allowing early estimates. Most striking is the exponential rise in incidence over the last decade, which can largely be explained by the increasingly specific implant subtypes examined-driven by our understanding of the pathologic mechanism of the disease. High-textured high-surface area implants (grade 4 surface) carry the highest risk of BIA-ALCL (1/2,832).