Focal hypertrophy of the pyloric muscle--torus hyperplasia.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011707:Pyloric Stenosis / Q000175:diagnosis*; D011859:Radiography; D013270:Stomach / Q000033:anatomy & histology