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Am J Surg Pathol. 1990 Oct;14(10):977-82.

Primary cutaneous rhabdomyosarcoma.

Author information

1
Department of Pathology, University of California, San Francisco Medical Center 94143.

Abstract

We report an unusual case of primary cutaneous embryonal rhabdomyosarcoma presenting as a solitary skin lesion on the anterior chest of a 20-month-old child. The tumor was characterized by small, round to oval, poorly differentiated cells. Immunohistochemically, the tumor was negative for NSE, S-100 protein, LCA, and keratin but positive for muscle-specific actin, myoglobin, desmin, and vimentin, thus indicating the presence of myogenous differentiation. Ultrastructural analysis demonstrated thick and thin filaments. Special studies showed no evidence of a primary rhabdomyosarcoma in the patient at a more typical location, nor was there any evidence of metastases.

PMID:
2206084
[Indexed for MEDLINE]

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