This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bleeding from the GUT and diseases of esophagus, Subject name: Medicine
All are true about persistent caliber aery except? 
Select and explain. 
A. Thermal coagulation, B. Angiographic embolization, C. Bleeds pin point mucosal erosion, D. Deep enteroscopy
D: Deep enteroscopy
Answer: D: Deep enteroscopy 
Explanation: Persistent caliber aery is called Dieulafoy's lesion. It is a large calibre aeriole that runs beneath the gut mucosa and bleeds pinpoint mucosal erosion. For management of bleeding in Dieulafoy's lesion, endoscopic therapy like thermal coagulation or band ligation is effective. In case of failure to control bleeding with above methods, angiographic embolization is used. Deep enteroscopy is used in patients with diffuse small bowel pathology like vascular ectasia.