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Fujiwara T, Kunisada T, Nakata E, Nishida K, Yanai H, Nakamura T, Tanaka K, Ozaki T. Advances in treatment of alveolar soft part sarcoma: an updated review. Jpn J Clin Oncol 2023; 53:1009-1018. [PMID: 37626447 PMCID: PMC10632598 DOI: 10.1093/jjco/hyad102] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Alveolar soft part sarcoma is a rare neoplasm of uncertain histogenesis that belongs to a newly defined category of ultra-rare sarcomas. The neoplasm is characterized by a specific chromosomal translocation, der (17) t(X; 17)(p11.2;q25), that results in ASPSCR1-TFE3 gene fusion. The natural history of alveolar soft part sarcoma describes indolent behaviour with slow progression in deep soft tissues of the extremities, trunk and head/neck in adolescents and young adults. A high rate of detection of distant metastasis at presentation has been reported, and the most common metastatic sites in decreasing order of frequency are the lung, bone and brain. Complete surgical resection remains the standard treatment strategy, whereas radiotherapy is indicated for patients with inadequate surgical margins or unresectable tumours. Although alveolar soft part sarcoma is refractory to conventional doxorubicin-based chemotherapy, monotherapy or combination therapy using tyrosine kinase inhibitors and immune checkpoint inhibitors have provided antitumor activity and emerged as new treatment strategies. This article provides an overview of the current understanding of this ultra-rare sarcoma and recent advancements in treatments according to the clinical stage of alveolar soft part sarcoma.
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Affiliation(s)
- Tomohiro Fujiwara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiyuki Kunisada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kenji Nishida
- Department of Pathology, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Yanai
- Department of Pathology, Okayama University Hospital, Okayama, Japan
| | - Tomoki Nakamura
- Department of Orthopaedic Surgery, Mie University, Tsu, Japan
| | - Kazuhiro Tanaka
- Department of Advanced Medical Sciences, Oita University, Yufu, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Perry KD, Montecalvo J, Perry AM. Sarcomas of the mediastinum with epithelioid morphology. MEDIASTINUM (HONG KONG, CHINA) 2021; 5:4. [PMID: 35118310 PMCID: PMC8794301 DOI: 10.21037/med-20-61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/13/2020] [Indexed: 06/14/2023]
Abstract
While soft tissue sarcomas typically have a spindled or pleomorphic appearance, a subset of malignant soft tissue neoplasms can have a prominent epithelioid morphology. In complex anatomic sites such as the mediastinum, such tumors can often be mistaken for a carcinoma or mesothelioma. Frequent expression of cytokeratin staining can further confound the diagnostic process and familiarity with these entities can help prevent an erroneous diagnosis. Particular entities that have been reported to occur in the mediastinum with such features include dedifferentiated liposarcoma, pleomorphic liposarcoma, malignant peripheral nerve sheath tumor, synovial sarcoma, SMARCA4-deficient thoracic sarcoma, alveolar soft part sarcoma and clear cell sarcoma. Many of these tumors exhibit unique clinical, genetic, molecular or immunohistochemical features which allow for accurate characterization. For example, pleomorphic liposarcoma contains bizarre appearing lipoblasts and dedifferentiated liposarcoma exhibits MDM2 gene amplification that is typically confirmed by fluorescence in-situ hybridization. Malignant peripheral nerve sheath tumor will often arise in association with a nerve or neurofibroma. Synovial sarcoma consistently exhibits rearrangements involving the SS18 gene and SMARCA4-deficient thoracic sarcoma shows loss of SMARCA4 staining in the tumor cells. Alveolar soft part sarcoma demonstrates an ASPL-TFE3 fusion transcript. Clear cell sarcoma often shows an EWSR1-ATF1 fusion transcript. When encountering a sarcoma of the mediastinum with epithelioid features, familiarity with these and other characteristics can help insure a correct diagnosis.
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Affiliation(s)
- Kyle D. Perry
- Department of Pathology, Henry Ford Health System, Detroit, MI, USA
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Abstract
RATIONALE Alveolar soft part sarcoma (ASPS) is a rare malignant soft tissue neoplasm with controversial histogenesis. ASPS accounts for 0.5% to 1% of all soft tissue sarcomas. Because of its rarity, ASPS is easily misdiagnosed, increasing the risk of incorrect treatment. PATIENT CONCERNS A 6-year-old female patient presented with a history of a 2.0 × 2.5 × 3.0-cm mass in the deep soft tissues of her right lower extremity. DIAGNOSES Histopathological features indicated the diagnosis of ASPS. Microscopically, a diffuse arrangement of tumor cells or pseudoalveolar architectures separated by thin and well-vascularized fibrous septa were observed. Immunohistochemical staining of the tumor cells indicated positivity for transcription factor E3, myogenic determination factor 1, and periodic acid-Schiff-diastase (PAS-D) and showed a Ki-67 proliferating index of approximately 20%. INTERVENTIONS The patient underwent enlarged resection of the tumor and was treated with radiotherapy. OUTCOMES During the 3-year follow-up, the patient has remained in good condition, with no symptom recurrence, distant metastatic spread, or significant toxicity during or after treatment. The patient remains under regular surveillance. LESSONS Its low incidence, lack of characteristic clinical manifestations, and atypical location often lead to ASPS misdiagnosis and subsequent incorrect treatment. Nuclear expression of transcription factor E3 is of diagnostic value for ASPS. At present, there is no consensus on the treatment for ASPS. In-depth pathological analysis is needed to better understand the characteristics of this tumor.
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Affiliation(s)
- Bin Wang
- Department of Radiation Oncology
| | | | | | - Limei Qu
- Department of Pathology, The First Hospital of Jilin University, Changchun, China
| | - Lingbin Meng
- Department of Internal Medicine, Florida Hospital, Orlando, Florida
| | - Ying Xin
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, China
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Tao X, Hou Z, Wu Z, Hao S, Liu B. Brain metastatic alveolar soft-part sarcoma: Clinicopathological profiles, management and outcomes. Oncol Lett 2017; 14:5779-5784. [PMID: 29113207 PMCID: PMC5661425 DOI: 10.3892/ol.2017.6941] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/03/2017] [Indexed: 12/16/2022] Open
Abstract
Alveolar soft-part sarcoma (ASPS) is a rare sarcoma that presents in the buttocks or thigh of young adults and often metastasizes to the brain. The present study examined the clinical features and morphology of brain metastatic ASPS. The case records of eight patients with brain metastatic ASPS admitted between November 2008 and March 2015 were reviewed. The relevant clinical data (including patient age and sex, neuroimaging studies, histopathological and immunohistochemical features, surgical records and follow-up reports) were collected through a review of patient records. The sex distribution was 3:1 male to female and the age ranged between 15 and 33 years at the time of surgery. In total, five patients with brain metastases had concurrent pulmonary metastases. The lesions were hypointense on T1-weighted images in every patient, hyperintense on T2-weighted images in six patients and contrast enhancement was present in all patients. The most notable immunohistochemical feature was strong immunohistochemical staining for TFE3 in each patient. Gross total resection was performed in all eight patients, with two patients undergoing adjuvant radiotherapy and one undergoing adjuvant chemotherapy. Four recurrent cases were observed during the follow-up. TFE3 staining and knowledge of its microscopic characteristics would facilitate earlier diagnosis: Early diagnosis with a multidisciplinary, multimodal approach to treatment is required to achieve extended disease-free survival in patients with brain metastatic ASPS.
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Affiliation(s)
- Xiaogang Tao
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Zonggang Hou
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Zhen Wu
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Shuyu Hao
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Baiyun Liu
- Department of Neurosurgery, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P.R. China.,Department of Neurotrauma, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, P.R. China.,Nerve Injury and Repair Center of Beijing Institute for Brain Disorders, Beijing 100069, P.R. China.,Department of Neurotrauma, General Hospital of The Armed Police Force, Beijing 100039, P.R. China.,China National Clinical Research Center for Neurological Diseases, Beijing 100050, P.R. China.,Beijing Key Laboratory of Central Nervous System Injury, Beijing 100050, P.R. China
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Tian L, Cui CY, Lu SY, Cai PQ, Xi SY, Fan W. Clinical presentation and CT/MRI findings of alveolar soft part sarcoma: a retrospective single-center analysis of 14 cases. Acta Radiol 2016; 57:475-80. [PMID: 26231949 DOI: 10.1177/0284185115597720] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 06/29/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND Alveolar soft part sarcoma (ASPS) is a relatively rare malignant tumor and early diagnosis and appropriate treatment for ASPS are essential for a good prognosis. PURPOSE To retrospectively review the clinical presentation and computed tomography (CT) and magnetic resonance imaging (MRI) findings of ASPS so as to improve the accuracy of imaging diagnosis. MATERIAL AND METHODS Fourteen patients with pathologically proven ASPS were enrolled. Their clinical and imaging findings were retrospectively reviewed. RESULTS The median age of the patients was 29 years (range, 13-37 years). Most tumors were located in the soft tissues of the trunk and lower limbs. The median maximal diameter of the masses was 91 mm. Thirteen masses presented with ovoid or irregular shapes. Eleven masses had less clear boundaries. Compared with the adjacent muscles, the masses were isodense or hypodense on CT, hypo-, iso-, or hyperintense on T1-weighted images, and heterogeneous hyperintense on T2-weighted images. Intense enhancement was seen after contrast agent administration, with prominent intra- or peri-tumoral feeders on CT or flow voids on MRI. By the end of the last follow-up, 13 patients had distant metastasis and three patients had local recurrence. CONCLUSION ASPS should be included in the differential diagnosis when a bulky, heterogeneous soft tissue mass in the trunk and the lower limbs with intense enhancement after contrast administration and prominent intra- or peri-tumoral feeders on CT or flow voids on MRI is seen, particularly in young patients.
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Affiliation(s)
- Li Tian
- Department of Imaging Diagnosis and Interventional Center, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Chun-Yan Cui
- Department of Imaging Diagnosis and Interventional Center, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Su-Ying Lu
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
- Department of Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Pei-Qiang Cai
- Department of Imaging Diagnosis and Interventional Center, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Shao-Yan Xi
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
- Department of Pathology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
| | - Wei Fan
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
- Department of Nuclear Medcine, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
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den Bakker MA, Marx A, Mukai K, Ströbel P. Mesenchymal tumours of the mediastinum--part II. Virchows Arch 2015; 467:501-17. [PMID: 26358060 PMCID: PMC4656710 DOI: 10.1007/s00428-015-1832-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/06/2015] [Accepted: 08/11/2015] [Indexed: 02/06/2023]
Abstract
This is the second part of a two-part review on soft tissue tumours which may be encountered in the mediastinum. This review is based on the 2013 WHO classification of soft tissue tumours and the 2015 WHO classification of tumours of the lung, pleura, thymus and heart and provides an updated overview of mesenchymal tumours that have been reported in the mediastinum.
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Affiliation(s)
- Michael A den Bakker
- Department of Pathology, Maasstad Ziekenhuis, PO Box 9100, 3007, AC, Rotterdam, The Netherlands.
- Department of Pathology, Erasmus MC, Rotterdam, The Netherlands.
| | - Alexander Marx
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Kiyoshi Mukai
- Department of Diagnostic Pathology, Saiseikai Central Hospital, Tokyo, Japan
| | - Philipp Ströbel
- Department of Pathology, Universitätsmedizin Göttingen, Göttingen, Germany
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