label: adult botryoid rhabdomyosarcoma
label_lc: adult botryoid rhabdomyosarcoma
description: 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.