[An aggressive malignant smooth muscle neoplasm, arising from an extrahepatic bile duct. It is characterized by a proliferation of neoplastic spindle cells. ( NCI )]
UMLS (NCI) C1333508Extrahepatic Bile Duct Leiomyosarcoma
Leiomyosarcoma of Bile Duct
Leiomyosarcoma of Extrahepatic Bile Duct
Leiomyosarcoma of the Bile Duct
Leiomyosarcoma of the Extrahepatic Bile Duct