Hello! I ve read your your concerns, i will try to breakdown systematically the answer to your queries. Your work-ups revealed different problems with totally different management. First, CT scan showed cholangiocarcinoma with metastasis, usually for cholangiocarcinoma with still resectable and is detected early (without metastasis) the treatment will be surgery. However, in your mother s case, you indicated that there is metastasis, I will assume that the metastasis is in the liver (most common site), the treatment for advanced cholangiocarcinoma is chemotherapy and biliary drainage (if there are sysmptoms of biliary obstruction--yellowing of skin, tea-colored urine, acholic stools). If I was the treating surgeon, I will request additional tests-- liver function, tumor markers, complete blood count. Second, let s discussed the ultrasonography result-- it revealed several cysts. Cysts are commonly non-cancerous, they are fluid filled masses, commonly containing bile. The treatment is observation for small cysts, if the size is more than 5cm, the risk of rupture is high, hence, unroofing of cyst is suggested. For now, it is really necessary to know the nature of the disease, since they have very different treatments pathways and course of disease. I hope your mother gets well soon!