Infantile hemangiopericytoma--case report and literature review |
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Authors: | Futagami A Aoki M Iwakiri I Hyakusoku H Kawamoto M Kawana S |
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Affiliation: | Department of Dermatology, Nippon Medical School, Tokyo, Japan. aya-f@nms.ac.jp |
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Abstract: | Infantile hemangiopericytoma is a rare soft tissue neoplasm of pericytic origin and is almost always benign, despite its worrisome pathologic features. We describe a 2-month-old male infant with a soft tissue mass on his right thigh. Histologically, the lesion showed a characteristic hemangiopericytoma-like vascular pattern, multilobulation, and moderate mitotic activity. These morphologic features were prediagnosed as infantile hemangiopericytoma. However, immunohistochemical and ultrastructural studies revealed a heterogeneous cellular composition, primarily pericytes and endothelial cells, similar to that observed in infantile myofibromatosis. |
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