Leiomyosarcoma of scalp

الملخص EN

Cutaneous leiomyosarcoma is a rare soft tissue neoplasm of smooth muscle derivation which subdivided into cutaneous and subcutaneous form.

The majority of former type occurs on the hair bearing surfaces of the extremities, particularly the lower extremities.

We present a rare case of cutaneous leiomyosarcoma occurred on the scalp of a 64 years old man with history of previous trauma (multiple burning due to his work, bakery).

The Masson-trichrome and mc stains for vimentin, desmin, alpha 1-antitrypsin, and Smooth Muscle Antibody (SMA) were positive and cytokeratin and S-100 were negative.

The case was a primary scalp leiomyosarcoma in which other spindle cell sarcomas and carcinomas were excluded.