甲状舌管囊肿是颈部较少见的囊肿性占位病变。ＣＴ能显示该病的病理特征 ,有助于作出定性诊断。笔者发现 1例 ,报告如下。患者　男 ,5 6岁 ,颈部包块 3年 ,伴烧灼感及吞咽不适。查体 :颈前区上中部扪及一肿块 ,大小约 5ｃｍ× 4ｃｍ× 6ｃｍ ,质软 ,边界清楚 ,与周围组织无粘连 The thyroglossal cyst is a rare cystic lesion in the neck. CT can show the pathological features of the disease, help to make a qualitative diagnosis. I found 1 case, the report is as follows. Male patient, 56 years old, neck mass 3 years, with burning sensation and swallowing discomfort. Physical examination: upper cervical anterior palpable mass, size of about 5cm × 4cm × 6cm, soft, clear boundary, no adhesions with the surrounding tissue