Childhood Embryonal Rhabdomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** A poorly circumscribed morphologic variant of rhabdomyosarcoma occurring in children. The neoplasm is characterized by the presence of primitive skeletal muscle in any stage of myogenesis.

**Synonyms:** - Embryonal Childhood Rhabdomyosarcoma - Embryonal Rhabdomyosarcoma - Pediatric Embryonal Rhabdomyosarcoma