鳃裂囊肿的CT诊断

目的：探讨鳃裂囊肿的CT表现及其诊断价值。方法：收集我院CT诊断并经手术治疗的鳃裂囊肿15例，复习有关献，对其CT征象进行分析。结果：本组鳃裂囊肿均位于胸锁乳突肌上1/3的前缘，相当于舌骨平面，颈动脉鞘的外侧，左侧8例，右侧7例。注射造影剂后无强化现象。囊肿与周围结构界限清楚。囊肿邻近结构有不同程度受压移位。结论：CT可定位定性地诊断鳃裂囊肿，对指导临床治疗有很高的价值。

Diagnosis of branchial cleft cyst with CT

Objective To probe the CT features of branchial cleft cyst(BCC)and its diagnostic values.Methods CT findings of 15 BCC pathologically verified were reviewed with correlated literatures.Results BCC of this group were located in the anterior border of the sternocleidomastoid muscle in its upper 1/3 portion,near the level of the hyoid bone and outside the carotid sheath structures.8 cases were in the left side and 7 cases in the right side.No enhancements were observed in the lesions except for an infection.The cysts were well-circumscribed with the adjacent structures.Displacement of adjacent structures was a characteristic features.Conclusion CT can make the diagnosis of BCC with a clear demonstration of its location and the relationship to the adjacent structures,and thus has a high value to guide the clinical therapy including operation.