conv: My father went to the hospital for abdominal pain. They found a tumor_comma_ but the operation to remove it went well. He passed away suddenly a few days after. My father was having abdominal pain_comma_ so he went to the hospital and they discovered a tumor. Oh no_comma_ was it benign? It was cancerous_comma_ but the surgery to remove it seemed to go well. A few days later he passed away suddenly_comma_ with no exact cause of death. That is so terrible_comma_ I'm so sorry.