Alveolar rhabdomyosarcoma on the external ear: a case report.

Alveolar rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma of childhood. It typically has middle ear/temporal bone and nasopharynx as its most common head and neck sites. In fact, 'middle ear' is what is meant by 'ear' location in the many reports of pediatric RMS. This case report, however, is of RMS occurring on the external ear of a young female. RMS in skin should motivate a search for an occult extremity or visceral tumor, which was not present in this case.