Prepyloric lesion--benign or malignant? (X-ray demonstrations of two cases).
D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011708:Pylorus; D011859:Radiography; D013272:Stomach Diseases / Q000000981:diagnostic imaging*; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*; D013276:Stomach Ulcer / Q000000981:diagnostic imaging; D000267:Tissue Adhesions / Q000000981:diagnostic imaging