Childhood Botryoid-Type Embryonal Rhabdomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** A morphologic variant of embryonal rhabdomyosarcoma occurring in children. The tumor arises from organs with a mucosal epithelial surface. It is characterized by the formation of a cambium layer in the affected tissue and polypoid nodules within an abundant myxoid stroma.

**Synonyms:** - Botryoid-Type Embryonal Rhabdomyosarcoma - Childhood Botryoid Rhabdomyosarcoma - Childhood Sarcoma Botryoides - Childhood Sarcoma Botryoides