Orbital Alveolar Rhabdomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** A malignant mesenchymal neoplasm that arises in the orbit. It is characterized by the presence of round cells with myoblastic differentiation and a fibrovascular stroma.

**Synonyms:** - Alveolar Rhabdomyosarcoma of Orbit - Alveolar Rhabdomyosarcoma of the Orbit - Orbit Alveolar Rhabdomyosarcoma