[Antral ring: unusual anomaly (description of a case)].
D000328:Adult; D005773:Gastroscopy; D006801:Humans; D008297:Male; D011706:Pyloric Antrum / Q000002:abnormalities; D011707:Pyloric Stenosis / Q000151:congenital*
Anillo antral: anomalìa inusual (descripciòn de un caso.