Granular cell tumors of the biliary tract.
D000328:Adult; D001652:Bile Ducts / Q000473:pathology; D001660:Biliary Tract Diseases / Q000473:pathology* / Q000601:surgery; D001706:Biopsy; D005260:Female; D006801:Humans; D009379:Neoplasms, Muscle Tissue / Q000473:pathology* / Q000601:surgery