本病临床表现为高位进行性吞咽困难,开始对只表现在吞咽固体食物时,数月后症状逐渐加重;食物经常误入鼻腔或气管;病人明显消瘦。环咽肌病变引起的吞咽困难并不伴随咽部运动障碍而单独存在,化验检查正常。年龄多在五十以上。放射线检查有时发现膨出(但不一定在 The clinical manifestations of high disease progressive dysphagia, began to show only swallowed solid food, the symptoms gradually worsen after a few months; food often strayed into the nasal cavity or trachea; the patient was wasting significantly. Cricopharyngeal myopathy caused by dysphagia is not accompanied by pharyngeal dyskinesia alone, laboratory tests were normal. More than fifty years old. Radiography sometimes found bulging (but not necessarily at