Perivascular epithelioid cell tumor of the heart in a child

Autor: Lixin Wei, Huaiyin Shi, Yan-hong Tai
Rok vydání: 2010
Předmět:
Zdroj: Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society. 13(5)
ISSN: 1093-5266
Popis: We report a case of cardiac perivascular epithelioid cell tumor (PEComa) that occurred in a 10-year-old girl. The patient presented with cardiac murmur and increasing dyspnea. A solid mass was detected in the left atrioventricular groove by sonography and chest computed tomography. Histologic examination revealed a tumor composed of spindle and epithelioid cells, exhibiting either a clear or a slightly eosinophilic cytoplasm and a bland nucleus. Intranuclear pseudoinclusions and calcifications could be found occasionally. Immunohistochemically, tumor cells were positive for HMB45, melan-A, and smooth muscle actin. We regard this case as a PEComa of uncertain malignant potential. The patient remains disease free at her 18-month follow up. To the best of our knowledge, this is the 3rd report of cardiac PEComa and the 1st report of cardiac PEComa affecting a child.
Databáze: OpenAIRE