Conversation: The conversation between human and AI assistant.
[|Human|] What do you think the cause of stomach cancer is?.. and dont tell me its the bacteria because my mother didnt have any of the risk factors including the bacteria. My mother was 49 and 58. She weighed about 190 pounds. She was a white American living in Wisconsin and there were nothing in her medical history that had to do with this cancer.  She had part of her esophagus removed at the Mayo Clinic. Since she had her esophagus removed maybe it was actually esophageal cancer which is pretty similar but Im think it was stomach cancer.  I know youd think Id know exactly what cancer it is but I didnt really pay that much attention through the whole process and now my mother died while Im going to graduate high school next year. I just want some answers.
[|AI|]  Hi, Thanks for writing in. Sorry to hear about your mother. Cancer is the uncontrolled proliferation of abnormal cells anywhere in the body. The process starts from a single cell and quickly multiplies to involve the entire organ. In case of the esophagus and stomach, there is cancer originating from the walls. The triggering factor might vary from a particular type of fish that is commonly seen in Japanese to any inherent genetic association. Cancers are essentially one rotten egg in a basket which destroys the other eggs. If the single rotten egg or early cancer is not cleared then it proceeds to involve the surrounding areas. In stomach cancer also there are different subtypes like adenocarcinoma, GIST, leiomyosarcoma and lymphoma. Every cancer behaves peculiarly. Hope your query is answered.