8902/3 Mixed embryonal rhabdomyosarcoma and alveolar rhabdomyosarcoma



Definitions

Connective, subcutaneous and other soft tissues
ICD-O-3 topography code: C49
ICD10: C49
           

A morphologic variant of alveolar rhabdomyosarcoma composed of alveolar and embryonic components. It is characterized by the presence of spindle cells with myoblastic differentiation, a myxoid stroma, and fibrous septa.