This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Small bowel vascular ectasia is associated with: \nSelect and explain. \nA. Retroviral infection, B. Amyloidosis, C. Chronic renal failure, D. Watermelon stomach', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Vascular Ectasias Vascular ectasias are flat mucosal vascular anomalies They are best diagnosed by endoscopy. They generally causes slow intestinal blood loss Classical example is: gastric antral vascular ectasia (GAVE) or "watermelon stomach" Other examples are: a) Cecal vascular ectasias (senile lesions) b) Radiation-induced rectal ectasias Argon plasma coagulation is an effective method of controlling bleeding. MUST KNOW: Patients with diffuse small-bowel vascular ectasias is associated with chronic renal failure and with hereditary hemorrhagic telangiectasia. Ref: Harrison, Edition-18, Page-2417.', 'role': 'assistant'}]