carcinoma of gallbladder and extrahepatic biliary tract https://www.malacards.org/card/carcinoma_of_gallbladder_and_extrahepatic_biliary_tract Carcinoma of the gallbladder (GBC) is the most common and aggressive form of biliary tract cancer (BTC) usually arising in the fundus of the gallbladder, rapidly metastasizing to lymph nodes and distant sites. MONDO:0018918 Orphanet:56044 UMLS:C5566557 MEDGEN:1797980 carcinoma of gallbladder and EBT MedDRA:10007426 GARD:0018850 extrahepatic bile duct neoplasm