Gallbladder and extrahepatic biliary tract
Leiomyosarcoma is an uncommon, aggressive malignant smooth muscle neoplasm, histologically characterized by a proliferation of neoplastic spindle cells. Morphologic variants include epithelioid leiomyosarcoma
, myxoid leiomyosarcoma
, granular cell and inflammatory leiomyosarcoma
Fletcher CDM, Unni KK, Mertens F (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of Soft Tissue and Bone.
IARC Press: Lyon 2002
Leiomyosarcoma of the gallbladder and extrahepatic biliary tract
Epstein-Barr virus (EBV)-associated leiomyosarcoma/smooth muscle tumour rarely involves the gallbladder wall
Bosman FT, Carneiro F, Hruban RH, Theise ND (Eds.)
WHO Classification of Tumours of the Digestive System.
International Agency for Research on Cancer: Lyon 2010