Spindle Cell Rhabdomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** An uncommon variant of rhabdomyosarcoma characterized by the presence of whorls of spindle cells forming a storiform pattern. In children it usually arises in the paratesticular region. In adults it usually arises from the deep soft tissues in the head and neck.

**Synonyms:** - Spindle cell rhabdomyosarcoma