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
Small bowel vascular ectasia is associated with: 
Select and explain. 
A. Retroviral infection, B. Amyloidosis, C. Chronic renal failure, D. Watermelon stomach
C: Chronic renal failure
Answer: C: Chronic renal failure 
Explanation: 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.