鳃裂囊肿的CT与MRI诊断价值探讨

The value of CT and MRI in diagnosis of Branchial Cleft Cyst

目的探讨鳃裂囊肿的CT与MRI表现,以提高对本病的认识及诊断。方法回顾性分析15例经手术病理证实的第二鳃裂囊肿,分析其CT和MRI表现并进行分析。结果全部病例均为第二鳃裂囊肿,鳃裂囊肿常位于颈前三角区、胸锁乳突肌前内侧,CT表现为囊性肿块、边界清晰、密度均匀。MRI呈等或长T1、长T2信号,囊壁强化或不强化。结论 CT与MRI可以清楚显示鳃裂囊肿的发病部位、大小、形态及其与周围结构的关系,结合临床特点易做出正确诊断。

Objective To explore CT and MRI findings of branchial cleft cyst of adult in order to improve the recognization and differential diagnosis of the second brachial cleft cyst. Methods CT and MRI fundings of 15 cases with the second branchial cleft cyst proved surgically and pathologically and a review of those from the literatures were retrospectively analyzed. Results Branchial cleft cyst located in anterior triangle of neck and anteriomedialis of sternocleidomastoid. These cysts were sharpness of border and uniform density on CT. MRI findings was typically hypointense to hyperintense in T1WI and usually hyperintense in T2WI. There was enhancement or no enhancement in the cyst wall. Conclusion CT and MRI can clearly show the location, size, shape and the relationship to the adjacent tissues of These cysts, and also make a definite diagnosis of branchial cleft cyst on the basis of clinical characteristic.