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Palsgrove DN, Foss RD, Yu W, Garcia J, Rooper LM, Rekhtman N, Antonescu C, Gagan J, Agaimy A, Bishop JA. Adamantinoma-like Ewing Sarcoma (ALES) May Harbor FUS Rearrangements : A Potential Diagnostic Pitfall. Am J Surg Pathol 2023; 47:1243-1251. [PMID: 37494548 DOI: 10.1097/pas.0000000000002100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Adamantinoma-like Ewing sarcoma (ALES) is a rare malignancy currently considered a variant of Ewing sarcoma with most known cases harboring EWSR1 rearrangements. Herein we present a series of 6 cases of EWSR1 -negative ALES. The tumors arose in the sinonasal tract (n=3), major salivary glands (submandibular gland=1; parotid=1), and anterior mediastinum (n=1) in patients ranging from 25 to 79 years of age. Most tumors were basaloid in appearance, growing in large nests separated by interlobular fibrosis without overt squamous pearls. However, 1 case closely resembled a well-differentiated neuroendocrine tumor with uniformly round nuclei, eosinophilic cytoplasm, and trabecular architecture. All cases were diffusely positive for pan-cytokeratin, p40 or p63, and CD99. A subset of cases showed diffuse reactivity for synaptophysin, including 1 sinonasal tumor which also demonstrated sustentacular S100 protein expression. Molecular testing showed FUS rearrangements in all cases. Gene partners included known ETS family members FEV (n=2) and FLI1 (n=1). Our results expand the molecular diagnostic considerations for ALES to include FUS rearrangements. We also show that ALES may harbor FUS :: FLI1 fusion, which has not been previously reported in the Ewing family of tumors. Furthermore, ALES may show unusual histologic and immunophenotypic features that can overlap with olfactory carcinoma including S100-positive sustentacular cells. ALES should be considered in the diagnostic differential of small round cell tumors and tumors with neuroendocrine differentiation with immunohistochemical workup to include p40 and CD99/NKX2.2.
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Affiliation(s)
- Doreen N Palsgrove
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas
| | - Robert D Foss
- Head & Neck Pathology, Joint Pathology Center, Silver Spring
| | - Wengdong Yu
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Lisa M Rooper
- Department of Pathology, Johns Hopkins Hospital, Baltimore, MD
| | - Natasha Rekhtman
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Cristina Antonescu
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Jeffrey Gagan
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas
| | - Abbas Agaimy
- Institute of Pathology, University Hospital, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Justin A Bishop
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas
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Wu Q, He Y. A case report of CIC-DUX4 fusion-positive sarcoma in the pelvic cavity with targeted next-generation sequencing results. Front Oncol 2022; 12:1018992. [PMID: 36591446 PMCID: PMC9798229 DOI: 10.3389/fonc.2022.1018992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022] Open
Abstract
CIC-DUX4 fusion-positive sarcoma is a subtype of undifferentiated small round cell sarcoma that is rarely reported. As far as we know, less than 200 cases have been reported worldwide to date. The clinicopathologic characteristics of this kind of tumor are non-specific, which makes it difficult to be diagnosed. Therefore, more cases are required to enrich the diagnosis and treatment experience. Here, we present a 17-year-old Asian girl diagnosed with CIC-DUX4 fusion-positive sarcoma after targeted next-generation sequencing. Her clinical manifestation was abdominal pain. Furthermore, a mass in the pelvic cavity and massive ascites were found after an imaging examination. After resection, the mass was sent to the pathology department for a definite diagnosis, and the micromorphology showed an undifferentiated sarcoma with massive necrosis. The tumor cells were round to spindle with clear to eosinophilic cytoplasm and vesicular nuclei. Rhabdoid cells and myxoid mesenchyme were focally shown. Immunohistochemical staining showed diffusely positive for vimentin, cyclin D1, Fli-1, and WT-1 and very focally positive for CD99. Moreover, the targeted next-generation sequencing also revealed other genetic changes in this tumor including LongInDel of POLE, copy number variation of CD79, low tumor mutational burden, and microsatellite stability. With a follow-up time of 6 months, the patient survived the disease and received chemotherapy routinely. This report presented a rare primary site CIC-DUX4 fusion-positive sarcoma (CDS) and revealed novel genetic changes that enrich the manifestation, histology, and cytogenetic scales of this rare sarcoma. In addition, we have summarized the clinicopathologic characteristics of this tumor by reviewing the literature to have a better understanding of CIC-DUX4 fusion-positive sarcomas, which may be helpful for diagnosis and treatment.
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Affiliation(s)
- Qian Wu
- Department of Pathology, West China Second Hospital of Sichuan University, Chengdu, Sichuan, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China,NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
| | - Ying He
- Department of Pathology, West China Second Hospital of Sichuan University, Chengdu, Sichuan, China,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China,NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China,*Correspondence: Ying He,
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3
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Marchese M, Hafezi N, Jabiev A, Jawale R, Tashjian DB. CIC-rearranged round cell sarcoma presenting as a neck mass: A rare case in a pediatric patient. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2022. [DOI: 10.1016/j.epsc.2022.102559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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A rare diagnostically challenging case of CIC-DUX4 sarcoma arising in the neck. Pathology 2022; 55:568-571. [PMID: 35691724 DOI: 10.1016/j.pathol.2022.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/13/2022] [Indexed: 11/21/2022]
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5
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Zhang M, Yang Y, Guan X, Yao X, Guo Y, He L. Primary cardiac CIC-rearranged undifferentiated sarcoma in an infant. Pediatr Investig 2021; 5:313-317. [PMID: 34938974 PMCID: PMC8666930 DOI: 10.1002/ped4.12264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/07/2020] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Cardiac neoplasms are particularly rare in children, and the majority of these tumors are benign. Approximately 10% of cardiac neoplasms are malignant, including soft tissue sarcomas and lymphomas. Cardiac tumors could also be metastases. Primitive EWSR1-negative round or spindle cell undifferentiated sarcoma harboring CIC gene translocation is a highly aggressive malignancy mainly occurring in soft tissues. However, it has not yet been described in the heart. CASE PRESENTATION We report a sarcoma that arose from the right ventricle in a 1-year-old girl. Histologically, it was composed of closely arranged small round or oval undifferentiated cells with fibrovascular separation, hyaline degeneration, and geographical necrosis. Immunohistochemically, the neoplastic cells exhibited focal membrane positivity for CD99 and diffuse positivity for WT1 and ETV4. Fluorescent in situ hybridization analysis showed EWSR1-negative but CIC-positive split signals. The breakpoint was also confirmed by whole genome sequencing. CONCLUSION Based on morphological, immunohistochemical and molecular findings, this cardiac mass was diagnosed as CIC-rearranged sarcoma.
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Affiliation(s)
- Meng Zhang
- Department of PathologyBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina
| | - Yeran Yang
- Beijing Key Laboratory for Pediatric Diseases of OtolaryngologyHead and Neck SurgeryMOE Key Laboratory of Major Diseases in ChildrenBeijing Pediatric Research InstituteBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina
- Beijing Advanced Innovation Center for Big Data‐Based Precision MedicineBeihang University & Capital Medical UniversityBeijingChina
| | - Xiaoxing Guan
- Department of PathologyBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina
| | - Xingfeng Yao
- Department of PathologyBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina
| | - Yongli Guo
- Beijing Key Laboratory for Pediatric Diseases of OtolaryngologyHead and Neck SurgeryMOE Key Laboratory of Major Diseases in ChildrenBeijing Pediatric Research InstituteBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina
- Beijing Advanced Innovation Center for Big Data‐Based Precision MedicineBeihang University & Capital Medical UniversityBeijingChina
| | - Lejian He
- Department of PathologyBeijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijingChina
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Rodriguez JD, Selleck AM, Abdel Razek AAK, Huang BY. Update on MR Imaging of Soft Tissue Tumors of Head and Neck. Magn Reson Imaging Clin N Am 2021; 30:151-198. [PMID: 34802577 DOI: 10.1016/j.mric.2021.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This article reviews soft tissue tumors of the head and neck following the 2020 revision of WHO Classification of Soft Tissue and Bone Tumours. Common soft tissue tumors in the head and neck and tumors are discussed, along with newly added entities to the classification system. Salient clinical and imaging features that may allow for improved diagnostic accuracy or to narrow the imaging differential diagnosis are covered. Advanced imaging techniques are discussed, with a focus on diffusion-weighted and dynamic contrast imaging and their potential to help characterize soft tissue tumors and aid in distinguishing malignant from benign tumors.
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Affiliation(s)
- Justin D Rodriguez
- Department of Radiology, Duke University, 2301 Erwin Rd, Durham, NC 27705, USA
| | - A Morgan Selleck
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina Hospitals, 170 Manning Drive, CB 7070, Physicians Office Building, Rm G190A, Chapel Hill, NC 27599, USA
| | | | - Benjamin Y Huang
- Department of Radiology, UNC School of Medicine, 101 Manning Drive, CB#7510, Chapel Hill, NC 27599, USA.
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Ullah A, Sinkler MA, Velasquez Zarate L, Clavijo A, White J. Ewing Sarcoma and Ewing-Like Sarcoma and the Role of NKX2.2 Immunoreactivity. Cureus 2021; 13:e17391. [PMID: 34584801 PMCID: PMC8457536 DOI: 10.7759/cureus.17391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2021] [Indexed: 11/05/2022] Open
Abstract
Ewing sarcoma (ES) belongs to the family of "small round blue cell" tumors and its diagnosis currently involves a combination of immunostaining and molecular analysis. However, due to significant histological overlap with other tumors of the same family, accurate diagnosis has historically involved combining these results with clinical correlation. Recently, multiple studies have analyzed the role of NKX2.2 immunopositivity in the diagnosis of ES. NKX2.2, a downstream target of the Ewing sarcoma breakpoint region-Friend leukemia integration 1 (EWSR1-FLI1) fusion, has been identified as a potential stain to differentiate ES and Ewing-like sarcoma from other small round blue cell tumors. In this study, we examine the histopathological interpretation of five patients. Four cases showed fluorescent in situ hybridization (FISH)-identified EWSR1 rearrangement. In one case, rearrangements of EWSR1 or FUS could not be detected, and a diagnosis of Ewing-like sarcoma was rendered. NKX2.2 was immunopositive in all five cases. Based on this limited dataset, NKX2.2 immunopositivity can significantly support the diagnosis of ES and has the potential to support the diagnosis of fusion-undetected Ewing-like sarcoma in appropriate clinical and histologic settings.
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Affiliation(s)
- Asad Ullah
- Pathology, Medical College of Georgia - Augusta University, Augusta, USA
| | - Margaret A Sinkler
- Orthopedic Surgery, Medical College of Georgia - Augusta University, Augusta, USA
| | | | - Alex Clavijo
- Pathology, Medical University of South Carolina, Charleston, USA
| | - Joseph White
- Pathology, Medical College of Georgia - Augusta University, Augusta, USA
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8
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Emerging Entities and New Diagnostic Markers for Head and Neck Soft Tissue and Bone Tumors. Adv Anat Pathol 2021; 28:139-149. [PMID: 33559990 DOI: 10.1097/pap.0000000000000295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Bone and soft tissue tumors of the head and neck are relatively uncommon tumors that often represent a diagnostic challenge because of the wide range of entities that must be considered in the differential diagnosis. Over the past few years, classification of bone and soft tissue tumors has evolved primarily because of substantial contributions from molecular genetics, with the identification of new markers that are increasingly used to complement histopathologic findings in the routine diagnostic workup. This review focuses on the recently described mesenchymal tumors that preferentially involve the head and neck region, with a focus on the most relevant novel immunohistochemical and molecular findings, including gene fusions and mutations, that can help in the diagnosis and in the assessment of clinical behavior.
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Taccogna S, Guglielmi R, Persichetti A, Morano C, Angelini F, Ienzi S, Scarpino S, Liverani A, Annovazzi A, Papini E. Carcinomas of the Thyroid with Ewing Family Tumor Elements (CEFTEs): A Diagnostic Challenge Before Surgery. Head Neck Pathol 2020; 15:254-261. [PMID: 32077055 PMCID: PMC8010003 DOI: 10.1007/s12105-020-01145-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 02/14/2020] [Indexed: 12/14/2022]
Abstract
Carcinomas of the thyroid with Ewing family tumor elements (CEFTEs) are small cell thyroid tumors characterized by epithelial differentiation and EWSR1-FLI1 rearrangements. In contrast to primary thyroid Ewing sarcomas, these rare tumors have a favorable prognosis. CEFTEs may co-exist with papillary thyroid carcinoma (PTC) foci and are thought to arise from either PTCs or main cells of solid cell nests (SCN). Due to their rare occurrence, characteristic clinical presentations, preoperatory sonographic (US) findings, and fine-needle aspiration (FNA) cytologic features were ill-defined until now. We report a case of a 40-year-old male who was referred to the thyroid clinic for a progressively enlarging, hard, painless, cervical mass. US examination revealed a hypoechoic nodule with lobulated margins and scant intranodular vascular signals of the right thyroid lobe. Evidence of extracapsular spread was not identified. FNA provided a Bethesda V cytology classification on conventional smears. Repeat FNA sampling with the use of a CytoFoam Core allowed a preoperative diagnosis consistent with undifferentiated thyroid carcinoma. Total thyroidectomy without lymph node dissection was performed. Histologic examination with subsequent molecular studies provided the diagnosis of papillary carcinoma of the thyroid with Ewing family tumour elements (CEFTEs). No additional treatment was rendered and the patient showed no evidence of local or distant disease by clinical examination, US, and 18FDG-TAC/PET after 6 months of follow-up. This is the first reported case of CEFTE with complete clinical, US, cytologic, and immunohistochemical preoperatory assessment.
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Affiliation(s)
- Silvia Taccogna
- Anatomic Pathology Unit, Regina Apostolorum Hospital, Via S. Francesco 50, Albano Laziale, 00041 Rome, Italy
| | - Rinaldo Guglielmi
- Endocrine and Metabolic Disease Department, Regina Apostolorum Hospital, Albano Laziale, Rome, Italy
| | | | - Carmelo Morano
- Surgical Pathology Department, Regina Apostolorum Hospital, Albano Laziale, Rome, Italy
| | - Francesco Angelini
- Medical Oncology Unit, Regina Apostolorum Hospital, Albano Laziale, Rome, Italy
| | - Sara Ienzi
- Anatomic Pathology Unit, Regina Apostolorum Hospital, Via S. Francesco 50, Albano Laziale, 00041 Rome, Italy
| | - Stefania Scarpino
- Pathology Unit, Department of Clinical and Molecular Medicine, Sapienza University, Sant’Andrea Hospital, Rome, Italy
| | - Andrea Liverani
- Surgical Pathology Department, Regina Apostolorum Hospital, Albano Laziale, Rome, Italy
| | - Alessio Annovazzi
- Nuclear Medicine Unit IRCCS - Regina Elena National Cancer Institute, Rome, Italy
| | - Enrico Papini
- Endocrine and Metabolic Disease Department, Regina Apostolorum Hospital, Albano Laziale, Rome, Italy
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10
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Morlote D, Harada S, Lindeman B, Stevens TM. Adamantinoma-Like Ewing Sarcoma of the Thyroid: A Case Report and Review of the Literature. Head Neck Pathol 2019; 13:618-623. [PMID: 30734898 PMCID: PMC6854136 DOI: 10.1007/s12105-019-01021-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 02/03/2019] [Indexed: 02/06/2023]
Abstract
Currently considered a variant of Ewing sarcoma, adamantinoma-like Ewing sarcoma is a rare malignancy that shows classic Ewing sarcoma-associated gene fusions but also epithelial differentiation. Here we present the 6th reported case of adamantinoma-like Ewing sarcoma involving the thyroid gland. Sections of the thyroid tumor from a 20-year old woman showed sheets, lobules and trabeculae of primitive, uniform, small round blue cells that diffusely expressed pankeratin, p40 and CD99. Fluorescent in situ hybridization revealed an EWSR1 gene rearrangement and an EWSR1-FLI1 fusion was detected by RT-PCR. Neck lymph nodes were not involved, and the patient was treated with a Ewing sarcoma chemotherapy protocol and radiation and is disease free 7 months after surgery. The unusual histology and immunohistochemical profile of adamantinoma-like Ewing sarcoma makes diagnosis and classification very challenging. We also present a literature review of adamantinoma-like Ewing sarcoma involving the thyroid.
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Affiliation(s)
- Diana Morlote
- Department of Pathology, University of Alabama at Birmingham, 3548 North Pavilion, 1802 6th Ave. S, Birmingham, AL 35249 USA
| | - Shuko Harada
- Department of Pathology, University of Alabama at Birmingham, 3548 North Pavilion, 1802 6th Ave. S, Birmingham, AL 35249 USA
| | - Brenessa Lindeman
- Department of Surgery, University of Alabama at Birmingham, Birmingham, AL USA
| | - Todd M. Stevens
- Department of Pathology, University of Alabama at Birmingham, 3548 North Pavilion, 1802 6th Ave. S, Birmingham, AL 35249 USA
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11
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Clinical Utility of In Situ Hybridization Assays in Head and Neck Neoplasms. Head Neck Pathol 2018; 13:397-414. [PMID: 30467669 PMCID: PMC6684702 DOI: 10.1007/s12105-018-0988-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/15/2018] [Indexed: 10/27/2022]
Abstract
Head and neck pathology present a unique set of challenges including the morphological diversity of the neoplasms and presentation of metastases of unknown primary origin. The detection of human papillomavirus and Epstein-Barr virus associated with squamous cell carcinoma and newer entities like HPV-related carcinoma with adenoid cystic like features have critical prognostic and management implications. In salivary gland neoplasms, differential diagnoses can be broad and include non-neoplastic conditions as well as benign and malignant neoplasms. The detection of specific gene rearrangements can be immensely helpful in reaching the diagnosis in pleomorphic adenoma, mucoepidermoid carcinoma, secretory carcinoma, hyalinizing clear cell carcinoma and adenoid cystic carcinoma. Furthermore, molecular techniques are essential in diagnosis of small round blue cell neoplasms and spindle cell neoplasms including Ewing sarcoma, rhabdomyosarcoma, synovial sarcoma, biphenotypic sinonasal sarcoma, dermatofibrosarcoma protuberans, nodular fasciitis and inflammatory myofibroblastic tumor. The detection of genetic rearrangements is also important in lymphomas particularly in identifying 'double-hit' and 'triple-hit' lymphomas in diffuse large B cell lymphoma. This article reviews the use of in situ hybridization in the diagnosis of these neoplasms.
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12
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Bremmer F, Fichtner A, Triefenbach R, Inniger R, Mayer P, Lukat L, Ströbel P, Schildhaus HU. CIC fusion-positive sarcoma of the spermatic cord. Virchows Arch 2018; 474:253-257. [PMID: 30310990 DOI: 10.1007/s00428-018-2471-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/27/2018] [Accepted: 10/04/2018] [Indexed: 01/31/2023]
Abstract
In addition to germ cell tumors and tumors of the sex cord stroma, the WHO classification of testis and paratesticular tumors also contains malignant soft tissue tumors. Among them, liposarcomas of the spermatic cord are the most common entities. Other mesenchymal tumors with smooth muscle, skeletal muscle, fibroblastic/myofibroblastic, or nerve sheath differentiation are rare. Ewing sarcoma is composed of uniform small round cells and typically characterized by translocations of the EWSR1 gene. In rare cases, Ewing sarcoma-like tumors lack an EWSR1 gene fusion. Some of these tumors harbor a specific CIC translocation. However, Ewing-like sarcoma has up to now never been described in the testis or spermatic cord. The present case describes the first EWSR1-negative, undifferentiated round cell sarcoma with CIC translocation of the spermatic cord. Potential differential diagnoses are discussed.
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Affiliation(s)
- Felix Bremmer
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Str.40, 37075, Göttingen, Germany.
| | - Alexander Fichtner
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Str.40, 37075, Göttingen, Germany
| | - Ralph Triefenbach
- Center for Pathology, Cytology and Molecular Pathology, Luise-Rainer-Str. 12, 40235, Düsseldorf, Germany
| | - Reinhard Inniger
- Center for Pathology, Cytology and Molecular Pathology, Luise-Rainer-Str. 12, 40235, Düsseldorf, Germany
| | - Peter Mayer
- Department of Urology, Catholic Clinics Oberberg, Wohlandstraße 30, 51766, Engelskirchen, Germany
| | - Laura Lukat
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Str.40, 37075, Göttingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Str.40, 37075, Göttingen, Germany
| | - Hans Ulrich Schildhaus
- Institute of Pathology, University Medical Center Göttingen, Robert-Koch-Str.40, 37075, Göttingen, Germany
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13
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Clinicopathologic Features of Non-CNS Primary Ewing Sarcoma Family of Tumors in the Head and Neck Region. Don't Forget the CIC- and BCOR-rearranged Sarcomas. Appl Immunohistochem Mol Morphol 2017; 27:e9. [PMID: 28777154 DOI: 10.1097/pai.0000000000000556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Owosho AA, Estilo CL, Huryn JM, Chi P, Antonescu CR. A Clinicopathologic Study of Head and Neck Malignant Peripheral Nerve Sheath Tumors. Head Neck Pathol 2017; 12:151-159. [PMID: 28762137 PMCID: PMC5953865 DOI: 10.1007/s12105-017-0841-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/21/2017] [Indexed: 12/14/2022]
Abstract
Head and neck high grade malignant peripheral nerve sheath tumors (HN-MPNSTs) are rare highly aggressive soft tissue sarcomas that show overlapping morphologic and immunophenotypic features with melanoma and other high grade sarcomas, resulting in diagnostic challenges, particularly in sporadic settings. Recent discoveries have implicated loss of function mutations in the polycomb repressive complex 2 (PRC2) components, including EED or SUZ12 genes, as one of the leading pathogenetic mechanisms in high grade MPNST. MPNSTs with PRC2 loss are associated with complete loss of trimethylation at lysine 27 of histone H3 (H3K27me3), which emerged as a reliable immunohistochemical marker in the diagnosis of sporadic and radiation induced MPNST. As the diagnosis of MPNST in the HN is particularly challenging to distinguish from melanoma and other sarcoma types, we carried out a clinicopathologic analysis on HN-MPNST patients managed at our institution over a 20-year period (1997-2016), using the latest diagnostic criteria including H3K27me3 staining and other molecular investigations. The overall survival of HN-MPNST was compared with other HN soft tissue sarcomas. The diagnosis of HN-MPNST was confirmed in 13 patients (seven males and six females), with a mean age of 31 years; with 3 (23%) patients being of pediatric age. The most common site was the neck soft tissue (77%). Two-thirds of patients (n = 9) had stigmata of NF1, three had prior radiotherapy and only one developed a de novo MPNST. All except one tumor (86%) tested showed loss of H3K27me3 expression, including all non-NF1 patients. The 2 and 5-year DSS rates were 50 and 30%. The 2-year DFS rate was 21%. Adverse predictors on DSS included adult age (p = 0.011), prior-history of RT (p = 0.003) and recurrence (p = 0.003). Compared to other molecularly confirmed subsets of HN sarcomas (Ewing and Ewing-like sarcoma, rhabdomyosarcoma and synovial sarcoma), HN-MPNST had the worst overall survival (p < 0.0001). We conclude that HN-MPNSTs are highly aggressive sarcomas associated with an unfavorable outcome and the utility of H3K27me3 IHC stains in the evaluation of MPNST is a reliable ancillary diagnostic adjunct.
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Affiliation(s)
- Adepitan A Owosho
- College of Dental Medicine, University of New England, Portland, ME, 04103, USA
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Cherry L Estilo
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Joseph M Huryn
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Ping Chi
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Cristina R Antonescu
- Department of Pathology, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY, 10065, USA.
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