Childhood Alveolar Rhabdomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** An aggressive malignant mesenchymal neoplasm occurring in children. It is characterized by the presence of round cells with myoblastic differentiation, and a fibrovascular stroma resembling an alveolar growth pattern.

**Synonyms:** - Alveolar Childhood Rhabdomyosarcoma - Alveolar Rhabdomyosarcoma - Pediatric Alveolar Rhabdomyosarcoma