Conversation: The conversation between human and AI assistant.
[|Human|] My husband just had a pet scan done yesterday and it revealed that he a distended gallbladder. He has stage 4 mestatic melanoma. He has been having stomach pain 3 or 4 days ago but it has almost gone away completely. Could he have been passing a gallstone? Is surgery required?
[|AI|]  Hi, Thanks for posting your query. I am Chat Doctor. K and I am pleased to assist you. Gallbaldder is seen as distended during fasting state or if the flow of bile in the bile duct is affected. If it is due to obstruction, then the duct proximal to the obstruction would be seen dilated and the liver function test would be abnormal. So not all cases of distended gallbladder are due to some disease process and hence surgery is not needed in all cases. I hope that answers your question. Regards.