Childhood Rhabdomyosarcoma with Mixed Embryonal and Alveolar Features

**Semantic type:** Neoplastic Process

**Definition:** A mixed rhabdomyosarcoma that occurs in children. The neoplasm is composed of embryonic and alveolar components. It is characterized by the presence of spindle cells with myoblastic differentiation and a myxoid and a fibrous stroma.

**Synonyms:** - Childhood Mixed Alveolar Rhabdomyosarcoma - Childhood Mixed Cell Type Rhabdomyosarcoma - Childhood Mixed Type Rhabdomyosarcoma - Mixed Alveolar Rhabdomyosarcoma - Mixed Childhood Rhabdomyosarcoma - Pediatric Mixed Cell Type Rhabdomyosarcoma - Pediatric Mixed Rhabdomyosarcoma - Pediatric Mixed Type Rhabdomyosarcoma