１临床资料患者，男性，３８岁。因感吞咽不畅半年，发现颈部明显肿大１月，于１９９１年６月１０日入院。否认有畏寒、发热、颈部疼痛、多食、多汗、消瘦等症状，既往无外伤及手术史。查体：体温３７．８℃，脉搏８０次／ｍｉｎ，呼吸２０次／ｍｉｎ，血压１６／９ｋＰａ... 1 Clinical data, male, 38 years old. Due to the poor sense of swallowing for six months, the neck was significantly enlarged in January and was admitted to hospital on June 10, 1991. Denies symptoms such as chills, fever, neck pain, excessive food, excessive sweating, wasting, etc., and no history of trauma or surgery. Physical examination: body temperature 37.8 °C, pulse 80 beats / min, breathing 20 times / min, blood pressure 16/9kPa ...