患者男，２６岁。因上腹部隐痛，返酸、嗳气伴呕吐１个月，于１９９６年１１月３日入院。查体：慢性病容，口腔、唇、颊部等处粘膜无黑色素沉着。腹平坦，未见肠型及蠕动波，无压痛及反跳痛，肠鸣音正常。血尿常规正常。Ｂ超：脾脏略增大，肝、胆、胰无异常。胃镜检查：胃... Male patient, 26 years old. He was admitted to hospital on November 3, 1996 due to pain in the upper abdomen, acid reflux and belching associated with vomiting for one month. Physical examination: chronic disease, no melanin pigmentation in the mouth, lips, cheeks, etc. Flat belly, no intestinal and peristaltic waves, no tenderness and rebound tenderness, normal bowel sounds. Hematuria is normal. B-mode ultrasound: The spleen is slightly enlarged and there is no abnormality in the liver, gallbladder and pancreas. Gastroscopy: Stomach...