[A morphologic variant of embryonal rhabdomyosarcoma occurring in adults. The neoplasm arises from organs containing a mucosal epithelial surface. It is characterized by the formation of a cambium layer in the affected tissue and polypoid nodules with an abundant myxoid stroma. ( NCI )]
UMLS (NCI) C1332185Adult Botryoid-Type Embryonal Rhabdomyosarcoma