squamous cell carcinoma extrahepatic bile duct squamous cell carcinoma squamous cell carcinoma of gallbladder and extrahepatic biliary tract https://www.malacards.org/card/squamous_cell_carcinoma_of_gallbladder_and_extrahepatic_biliary_tract SCTID:766978002 UMLS:C4707898 MONDO:0018537 Squamous cell carcinoma of the gallbladder and extrahepatic biliary tract is a rare hepatic and biliary tract tumor, arising either in the gallbladder itself or in the epithelium lining the extrahepatic biliary tree, the cystic duct and peribiliary glands. It is characterized by a substantial keratinization with abundant keratohyalin pearls and central deposition of dense keratin material within infiltrative nests and locally aggressive nature. In the early stages of the disease symptoms are vague and nonspecific (abdominal pain, jaundice and vomiting). In the advanced stages it may present with a bulky tumor and symptoms of adjacent organ involvement. Orphanet:424996 MEDGEN:1635098 GARD:0021792 squamous cell carcinoma of gallblader and EBT carcinoma of gallbladder and extrahepatic biliary tract