Adult rhabdomyoma of the extremity: a case report and review of the literature.

The adult rhabdomyoma is a rare, benign skeletal muscle neoplasm that usually occurs in the head and neck. A case report of an adult rhabdomyoma arising in the thigh is presented with a review of the literature. This is the first case of an extremity adult rhabdomyoma to be reported. It is also the largest at 13 centimeters. Distinction from a highly differentiated rhabdomyosarcoma is important. Recent chromosomal studies suggest that the adult rhabdomyoma is a true neoplasm. Total resection is curative but the lesion may recur if incompletely excised.