患者男，３５岁。因颈右侧包块３月于１９９７年８月入院。体检：颈右侧胸锁乳突肌后缘中段有一２ｃｍ×２ｃｍ圆形包块，质偏韧、有轻压痛、表面光滑、不活动、与皮肤无粘连。双侧甲状腺未触及肿块。穿刺细胞学抽到淡黄色液体，查到泡沫细胞及淋巴细胞，未见癌细胞。甲状腺Ｂ Male patient, 35 years old. The right neck mass was admitted to hospital in March of 1997 in March. Physical examination: There is a 2cm x 2cm circular mass in the middle of the posterior edge of the sternocleidomastoid muscle of the right side of the neck. The mass tends to be tough, has light tenderness, a smooth surface, inactivity, and no adhesion to the skin. No bilateral thyroid masses were touched. Puncture cytology to light yellow liquid, found foam cells and lymphocytes, no cancer cells. Thyroid B