Malignant transformation is commonly seen in ?
Stomal ulcer
Gastric ulcer
Chronic Duodenal ulcer
None
Ans. is None Earlier it was thought the malignant transformation occurs in chronic gastric ulcer but recent evidences suggest that it is not so. Those found to be malignant are malignant from the very beginning and are mistakenly labelled as benign due to inadequate biopsy.