Cutaneous Angiosarcoma Secondary to Lymphoedema or Radiation Therapy — A Systematic Review

Lower Extremity Angiosarcoma: A Life-Threatening Complication of Lymphedema

ABSTRACT

When angiosarcoma, a rare and aggressive tumor of the soft tissue, develops in the setting of chronic lymphedema, it is referred to as Stewart-Treves syndrome. It is usually seen in chronic lymphedema of the upper limbs postmastectomy. Angiosarcoma developing in the lower limb in the setting of chronic lymphedema is rare and has a poor outcome. The presentation of angiosarcoma can vary, ranging from a bleeding papule to a plaque or a subcutaneous mass, which can later progress to ulceration or necrosis. Treatment for Stewart-Treves syndrome is aggressive because of its poor prognosis and usually requires a multidisciplinary approach of surgery, radiation, and chemotherapy. Several theories have been put forth to explain the mechanism of Stewart-Treves syndrome, but it remains ambiguous. The current literature regarding angiosarcoma developing in the setting of chronic lymphedema in the lower limb is limited to single case reports. Herein, the authors report a series of six cases of biopsy-proven angiosarcoma in the setting of lower extremity lymphedema. Providers should include angiosarcoma in the differential diagnosis of ulcerative or vascular tumors arising in the context of lower extremity lymphedema.

Cutaneous Angiosarcoma Subtypes: A Quantitative Systematic Review of Demographics, Treatments, and Outcomes Within Published Patient-Level Cases

BACKGROUND

Cutaneous angiosarcoma (cAS) is a highly aggressive malignancy arising from the vascular endothelium. Given its rarity, there is insufficient data detailing patient demographics, management, and survival outcomes.

OBJECTIVE

To systematically compile published patient-level cases of cAS and to quantify and analyze data on demographics, management, and outcomes while determining prognostic indicators.

MATERIALS AND METHODS

Searches of EBSCOhost, MEDLINE, EMBASE, and the Cochrane Library generated 1,500 cases of cAS with individual level data available. PRISMA guidelines were followed.

RESULTS

Cutaneous angiosarcoma presented most often on the scalp of elderly men. Metastasis occurred in 36.3% of cases. Aggregate 5-year survival was 31.6% with the median survival of 25 months. The best 5-year survival was in the radiation-associated subtype (48.8%), whereas the worst was in the Stewart-Treves subtype (21.6%). Using multivariate analysis, gender, age group, disease subtype, treatment modality, and metastasis at presentation had significant effects on survival outcomes (p < .05).

CONCLUSION

The breadth of information obtained enables this study to serve as a resource that clinicians may reference when they encounter cAS.

The Effect of Education on Knowledge Regarding Breast Cancer Related Lymphedema Risk Reduction and Prevention Among Nursing Personnel

Aim The development of lymphedema post-breast-cancer surgery has been identified as a significant burden worldwide, with nurses at the forefront of prevention and risk reduction practices. Prevention is of crucial importance to avoid lymphedema formation and its complications. This study aims to assess the knowledge gained through an educational session regarding risk reduction and prevention of breast cancer-related lymphedema (BCRL) among nursing professionals and compare the pre-test and post-test knowledge. Methods and material The research approach was quantitative in nature, and the design adopted was a pre-experimental, one-group pre-test post-test design. The study was conducted in a 400-bed multispecialty teaching hospital in Bangalore, Karnataka. After obtaining formal permission from the authorities, the participants were approached and informed about the purpose of the study. Eighty-four staff nurses working with breast cancer-related lymphedema (BCRL) patients participated in the study. The data for the study was collected using a validated questionnaire based on the National Lymphedema Network's (NLN) breast cancer-related lymphedema (BCRL) risk reduction and preventive guidelines. The questionnaire consisted of two sections. Section A consisted of the staff nurses' demographic data, and Section B consisted of questions on risk reduction and prevention of lymphedema. The pre-test was conducted, followed by a structured teaching session on risk reduction and prevention of lymphedema among 84 staff nurses working with BCRL patients. After the teaching session, the post-test was conducted. Results Descriptive and inferential statistics were used for analysis in this study. The t-test determined the statistical significance using the software SPSS (SPSS Inc. Released 2007. SPSS for Windows, Version 16.0. Chicago, SPSS Inc.). The result showed that the mean knowledge score was 4.286 with SD 0.97 in the pre-test, which increased to 4.452 with SD 1.511 with a significant p-value (<0.001).  Conclusion According to the study's findings, nurses must get standardized lymphedema training in order to prevent lymphedema from developing in patients having breast cancer surgery. The study's outcome has implications on the focus areas for nurses in the context of the team's adoption and dissemination of breast cancer-related lymphedema preventive measures. Key messages of this study are - 1) BCRL is an irreversible, progressive complication with no cure if not diagnosed early. 2) Poor knowledge of lymphedema prevention among nurses leads to frustration for BCRL patients. 3) Risk reduction and prevention education enable the patient to reduce BCRL complications, minimize the severity of the condition, and improve the quality of life. 4) Pre-habilitation - patient education on early diagnosis and risk reduction/prevention of BCRL reduces the cost, time, and energy for the patient and health care delivery system.

Peripheral T cell profiling reveals downregulated exhaustion marker and increased diversity in lymphedema post-lymphatic venous anastomosis

Lymphedema is a progressive condition accompanying cellulitis and angiosarcoma, suggesting its association with immune dysfunction. Lymphatic venous anastomosis (LVA) can provide relief from cellulitis and angiosarcoma. However, the immune status of peripheral T cells during lymphedema and post-LVA remains poorly understood. Using peripheral blood T cells from lymphedema, post-LVA, and healthy controls (HCs), we compared the profile of T cell subsets and T cell receptor (TCR) diversity. PD-1⁺ Tim-3 ⁺ expression was downregulated in post-LVA compared with lymphedema. IFN-γ levels in CD4⁺PD-1⁺ T cells and IL-17A levels in CD4⁺ T cells were downregulated in post-LVA compared with lymphedema. TCR diversity was decreased in lymphedema compared with HCs; such TCR skewing was drastically improved in post-LVA. T cells in lymphedema were associated with exhaustion, inflammation, and diminished diversity, which were relieved post-LVA. The results provide insights into the peripheral T cell population in lymphedema and highlight the immune modulatory importance of LVA.

Contemporary diagnostic approach to atypical vascular lesion and angiosarcoma

Vascular neoplasms account for a substantial fraction of cutaneous mesenchymal tumors, spanning from clinically indolent benign lesions to highly aggressive malignancies. These neoplasms present a distinctive challenge in terms of their diagnostic histopathology, both because of the breadth of their morphological manifestations and because of the significant histological overlap between different entities, even benign and malignant ones. The post-radiotherapy setting is particularly problematic diagnostically, insofar as radiation exposure predisposes not only to secondary angiosarcoma, but also to atypical vascular lesion, a largely benign proliferation of cutaneous blood vessels typically affecting the breast. To address these challenges, we explore the clinical, histological, and molecular features of malignant vascular neoplasia, including primary and secondary subtypes, through the comparative lens of atypical vascular lesion. In addition to highlighting the key morphological indicators of malignancy in superficial vasoformative tumors, we offer an approach that integrates clinical characteristics and molecular genetic profiling to facilitate accurate classification. With this current knowledge as our foundation, we also look ahead in an effort to frame some of the key unanswered questions regarding superficial vascular malignancies and their natural history, clinical management, and molecular underpinnings.

Clinical Outcomes of Conservative Treatment for Low-Risk Ductal Carcinoma in Situ: A Systematic Review and Pooled Analysis

AIMS

The current gold standard of treatment for ductal carcinoma in situ (DCIS) is surgical resection with or without adjuvant radiotherapy. However, the increased detection and radical treatment of DCIS did not result in a declined incidence of invasive breast cancers, leading to the debate if DCIS has been overtreated. While ongoing randomised controlled trials on active surveillance of DCIS are still in progress, this systematic review aims to evaluate the best evidence on conservative treatment for DCIS from the literature.

MATERIALS AND METHODS

This systematic review was conducted in line with the PRISMA statement. We included all relevant studies published up to June 2022 for analysis. The primary outcomes were overall survival and breast cancer-specific survival (BCSS) of conservative treatment for DCIS.

RESULTS

Three studies, with a total of 34 007 women with low-risk DCIS, were included in the analysis. Active and conservative treatments both resulted in excellent 10-year BCSS, with no statistically insignificant difference (98.6% versus 96.0%, 31 478 women). One study comparing 5-year BCSS of active and conservative treatments only in subjects aged over 80 years also reported [AQ1]an insignificant difference (98.2% versus 96.0%, 2529 women). One study measuring 5- and 10-year overall survival between the treatment groups also reported [AQ1]an insignificant difference (5-year: 96.2% versus 92.4%; 10-year: 85.6% versus 86.7%, 31 106 women).

CONCLUSION

BCSS between active and conservative treatment for women with low-risk DCIS is both excellent and comparable, suggesting that conservative treatment is a possible alternative without compromising survival.

Ulcerating nodules on a background of lower leg lymphoedema

A patient presented with a 3-month history of a rapidly enlarging ulcerated tumour on his lower leg, occurring on a background of chronic idiopathic lymphoedema of approximately 10 years' duration. Histology revealed extensive infiltration of the dermis by a vascular tumour with pleomorphic and hyperchromatic endothelial cells, which stained positive for vascular markers CD31, CD34 and ERG. A diagnosis of lymphoedema-associated angiosarcoma was reached and our patient was treated with isolated limb perfusion with high-dose melphalan and tumour necrosis factor-alfa.

Healthcare Practitioners' Knowledge of Lymphedema

Objectives

Lymphedema is neglected in medical education, and a review on healthcare practitioners' (HCPs) knowledge is necessary to shed light on gaps and to provide evidence for establishing educational programs on lymphedema.

Methods

This systematic review was performed based on the PRISMA guideline in PubMed, Scopus, Web of Science, and Google Scholar databases. There was no limitation on the type of lymphedema or HCPs. The quality assessment was performed based on QATSDD. Data regarding study characteristics, questionnaire context, and findings of the study were summarized from each article.

Results

After the screening, 16 articles were included that 12 were cross-sectional, two were qualitative, and two were interventional pilot studies. Breast cancer and other cancer-related lymphedema, lymphatic filariasis, and podoconiosis were included, and the majority of articles were focused on primary HCPs. The overall knowledge was low and average in five and 11 articles, respectively, and prior education was a significant factor related to higher knowledge of lymphedema in two studies.

Conclusion

Structured education of lymphedema is needed to increase the knowledge of HCPs and to enhance their collaboration in multidisciplinary care teams. Improvement of HCPs' knowledge may lead to better outcomes of lymphedema patients' management which are neglected.

Current Management of Angiosarcoma: Recent Advances and Lessons From the Past

OPINION STATEMENT

Despite their rarity, angiosarcomas are one of the most aggressive soft tissue sarcomas. Management can often be challenging due to their location and infiltrative nature. A multidisciplinary treatment approach is always warranted, but the recurrence remains high even for localized tumors despite multimodality treatment. In the metastatic setting, cytotoxic chemotherapies, targeted therapies, and, more recently, immunotherapy are used. The sequence of systemic therapies remains currently a topic of active investigation. Over the last couple of years, there have been significant advances in understanding angiosarcoma biology, most notably via patient-driven initiatives like the Angiosarcoma Project. The knowledge derived from such translational work has led to identifying potential biomarkers of response to treatments and exploring new therapeutic avenues. More clinical trials are underway to expand treatment options and improve patient outcomes.

Radiation-Induced Sarcoma: A Retrospective Population-Based Study Over 34 Years in a Single Institution

AIMS

About a half of all cancer patients receive radiotherapy as part of their oncological treatment. Because of the carcinogenic effect of ionising radiation, there is a rare, but definite, risk of developing secondary malignancies, including sarcomas. The aim of this retrospective study was to describe the prevalence, patient and tumour characteristics, as well as prognosis and outcome, of patients with radiation-induced sarcomas (RIS) in a cohort of patients treated in the Sarcoma Centre at Aarhus University Hospital over a period of 34 years.

MATERIALS AND METHODS

All patients who fulfilled the criteria for RIS and were treated for RIS in the period 1979-2013 were included. Patient data were retrieved from the Aarhus Sarcoma Registry and the National Danish Sarcoma Database, crosschecked with the National Register of Pathology and validated using the patients' medical records. The primary end point was the effect of surgery and treatment intent on overall survival. Overall survival is reported using the Kaplan-Meier estimates and compared using the Log-rank test. Descriptive statistics are presented for patients, tumours and treatment characteristics.

RESULTS

Of 2845 patients diagnosed with sarcoma between 1979 and 2013, 64 (2%) were diagnosed with RIS. The median interval from the original malignancy was 11 years. The most common histological type was undifferentiated pleomorphic sarcoma (33%). Curative treatment was intended for 45 patients. Fifty patients underwent surgery, of whom 80% had microscopically radical resection (R0). The 5-year overall survival for the whole cohort was 32%. Patients who underwent surgery had a significantly better overall survival compared with patients who were not treated with surgery. In the univariate Cox proportional hazard analyses, no metastases at diagnosis, surgery and R0 resection were favourable prognostics factors of survival.

CONCLUSION

This study showed that RIS patients are unique in their epidemiology and tumour characteristics. They have a poor prognosis and need special research investigating new intensive treatment strategies to improve the outcome.

Case Report: Metachronous Quadruple Cancers Including Breast Cancer and Triple Genital Cancer

Most multiple primary cancers(MPCs) are double primaries, while quadruple cancer is rare, especially breast cancer and triple genital cancer. Our work is the first report about ametachronous quadruple cancer in the reproductive system, including breast, ovary, fallopian tube and cervix. A54-year-old woman, who underwent modified radical mastectomy and right breast tumor resection 3 years ago, presented with abnormal vaginal discharge for 2 months, and she was subsequently diagnosed with stage IIA2 cervical squamous cell carcinoma. She then underwent radiotherapy and chemotherapy, as well as radical hysterectomy, bilateral salpingo-oophorectomy and bilateral pelvic lymphadenectomy. Postoperative pathological findings revealed that the patient had cervical, ovarian and tubal triple cancers with different histopathology for all lesions, also different from breast cancer, implying that these tumors had separate etiology and were not metastatic tumors. Our work might provide aseries of diagnostic, etiological and therapeutic strategies for MPC patients.

Colonic Angiosarcoma Arising in Association with Amyloid Deposits

Angiosarcoma of the colon is rare, as is colonic amyloidosis. To our knowledge, there have been no reported cases of angiosarcoma arising in association with amyloid deposition. Herein, we described a case of 77-year-old man who presented with hematochezia, and a sigmoid mass was found on colonoscopy. Histologic examination of the resected specimen showed extensive nodular deposition of AL-lambda amyloid material in the colonic wall, as well as high-grade angiosarcoma which was closely intermingled with the amyloid deposits. While the occurrence of both colonic amyloidosis and angiosarcoma in this patient may represent pure coincidence, given the intimate association of the angiosarcoma and the amyloid deposition and the rarity of both of these lesions, we hypothesize that angiosarcoma could be secondary to amyloid deposition.

Arteriovenous graft in kidney transplant patients: Lookout for the rare but fearsome angiosarcoma

INTRODUCTION

Angiosarcomas are rare tumors, comprising less than 1% of all sarcomas. However, they portend a poor prognosis, as they tend to metastasize early, being of uttermost importance a prompt diagnosis and treatment.

CASE DESCRIPTION

We present the case of a 55-year-old female with history of kidney transplantation, immunosuppressed with tacrolimus, prednisolone, and mofetil mycophenolate. Fifteen years after the transplant, she developed an ulcerated lesion on the site of a nonfunctioning arteriovenous graft, which was excised. Histology was compatible with a high grade angiosarcoma that invaded the margins, and immunosuppression was switched to everolimus. Staging imaging exams revealed lymph node, muscle, and lung metastases. Shortly after, nodular lesions appeared compatible with local recurrence of the disease, and the patient showed severe deterioration of her clinical condition, being proposed for palliative chemotherapy. However, the disease showed an explosive progression and the patient died before starting the treatment.

CONCLUSION

This case emphasizes the importance of including inspection of the vascular access (functioning or not) in regular post-transplant consultation and value any alterations in the attempt of a timely diagnosis. Although rare, angiosarcoma is an important entity that should be considered in the differential diagnosis of soft tissue masses arising from a vascular access, especially in immunocompromised patients. Aggressive treatment should be offered whenever possible.

An Overview of Uncommon Cutaneous Malignancies, Including Skin Appendageal (Adnexal) Tumours and Sarcomas

A standardised classification of malignant skin appendageal (adnexal) tumours and sarcomas is required for improved patient management and prognosis. This has been hindered by considerable morphological variation both within and between tumour types, the use of many synonyms for the same tumour types and variation in classification between pathologists. This update uses the improved classification in the 2018 WHO classification of skin tumours as the basis to discuss malignant skin appendageal tumours, sarcomas and cutaneous metastases that regularly present to skin cancer clinicians, multidisciplinary skin cancer teams and tumour boards, with current evidence for management, where appropriate.