Eosinophilic gastritis.
D000293:Adolescent; D004724:Endoscopy; D004802:Eosinophilia / Q000473:pathology; D005756:Gastritis / Q000473:pathology; D006801:Humans; D008297:Male; D011706:Pyloric Antrum / Q000473:pathology; D014463:Ultrasonography