Perivascular epithelioid cell tumor (PEComa) is a very rare mesenchymal tumor with a distinctive morphology and immunophenotype. PEComas usually harbor TSC2 alterations, although TFE3 translocations, which occur in MiT family translocation renal cell carcinoma and alveolar soft part sarcoma, are also possible. We recently experienced a case of PEComa with TFE3 expression arising in the breast. An 18-year-old female patient presented with a right breast mass. Histologically, the tumor consisted of epithelioid cells with alveolar structure and showed a diffuse strong expression of HMB45 and TFE3. TSC2 was preserved. Melan A and smooth muscle actin were negative. To our knowledge, this is the first Korean case of PEComa of the breast that intriguingly presented with TFE3 expression.
Citations
Citations to this article as recorded by
Malignant lung PEComa (clear cell tumor): rare case report and literature review Marcos Adriano Garcia Campos, Lucas Fernandes Vasques, Rafael Goulart de Medeiros, Érico Murilo Monteiro Cutrim, Ana Júlia Favarin, Sarah Rebecca Machado Silva, Gyl Eanes Barros Silva, Marcelo Padovani de Toledo Moraes, Mariana Lopes Zanatta, Diego Aparec Frontiers in Oncology.2023;[Epub] CrossRef
Cathepsin K: A Versatile Potential Biomarker and Therapeutic Target for Various Cancers Die Qian, Lisha He, Qing Zhang, Wenqing Li, Dandan Tang, Chunjie Wu, Fei Yang, Ke Li, Hong Zhang Current Oncology.2022; 29(8): 5963. CrossRef
Endometrioid Carcinomas of the Ovaries and Endometrium Involving Endocervical Polyps: Comprehensive Clinicopathological Analyses Jihee Sohn, Yurimi Lee, Hyun-Soo Kim Diagnostics.2022; 12(10): 2339. CrossRef
Serous Carcinoma of the Endometrium with Mesonephric-Like Differentiation Initially Misdiagnosed as Uterine Mesonephric-Like Adenocarcinoma: A Case Report with Emphasis on the Immunostaining and the Identification of Splice Site TP53 Mutation Sangjoon Choi, Yoon Yang Jung, Hyun-Soo Kim Diagnostics.2021; 11(4): 717. CrossRef
Mesonephric-like Differentiation of Endometrial Endometrioid Carcinoma: Clinicopathological and Molecular Characteristics Distinct from Those of Uterine Mesonephric-like Adenocarcinoma Sujin Park, Go Eun Bae, Jiyoung Kim, Hyun-Soo Kim Diagnostics.2021; 11(8): 1450. CrossRef
Mesonephric-like Adenocarcinoma of the Uterine Corpus: Comprehensive Immunohistochemical Analyses Using Markers for Mesonephric, Endometrioid and Serous Tumors Hyunjin Kim, Kiyong Na, Go Eun Bae, Hyun-Soo Kim Diagnostics.2021; 11(11): 2042. CrossRef
Invasive Lobular Carcinoma With Extensive Clear Cells: A Pitfall in Diagnosis Mark H. Kavesh, Daniel Sanchez, Jaya Ruth Asirvatham International Journal of Surgical Pathology.2020; 28(2): 169. CrossRef
Glycogen-rich Clear Cell Carcinoma of the Breast: A Comprehensive Review Semir Vranic, Faruk Skenderi, Vanesa Beslagic, Zoran Gatalica Applied Immunohistochemistry & Molecular Morphology.2020; 28(9): 655. CrossRef
TFE3-expressing primary perivascular epithelioid cell tumor of the Lymph node mimicking nodal relapse of rectal cancer: A case report Jongmin Park, An Na Seo International Journal of Surgery Case Reports.2019; 59: 46. CrossRef