多层螺旋CT对颈部囊性肿块的诊断价值

目的 分析颈部囊性肿块的多层螺旋CT（MSCT）特征.方法 回顾性分析36例经病理证实的颈部囊性肿块,其中淋巴结病变9例,脓肿3例,涎腺病变2例,甲状舌骨囊肿9例,鳃裂囊肿5例,甲状腺病变2例,囊性水瘤3例,皮样囊肿1例,喉气囊肿1例,神经鞘瘤1例.结果 增强MSCT可以显示肿块的囊性特征.淋巴结病变为液化坏死所致,有较厚的囊壁;涎腺囊性病变表现各异;先天性囊肿常表现为光滑、壁薄和无增强的肿块,多数囊肿具有特定的解剖位置,如甲状舌骨囊肿主要位于颈前中线和舌骨水平,鳃裂囊肿多位于颌下腺后方和颈动脉鞘外侧,皮样囊肿位于口底.结论 MSCT影像学检查能准确对肿块定位、定性,对术前制定方案具有重要价值.

Clinical valne of MSCT in diagnosis of cystic masses of neck

Objective To investigate MSCT findings of cystic masses of the neck.Methods The clinical and CT imaging data of 36 cases with cystic neck lesions including 1ymphsdenopathy 9 cases,abscesses 3 cases,salivary lesions 2 cases,thyroid lesions 2 cases,thyroglossal duet cysts 9 cases,branchial cleft cysts 5 cases,cystic hygromas 3 cases,deimoidcyst 1 case laryngeal mucocele 1 case and nerve sheath tumors 1 case comfired by operation-pathology were analyzed.Results The cystic features of lesions could be showed on contrast-enhaced CT,cystic alteration in lymphadenopathy were due to necrosis and presented as the cystic wall enhanced and thickened salivary cystic lesions were variable congenital cystic masses usually appeared as a smooth,well-circum scribed mass,the cystis wall Was thin and nonenhanced unless inflammation was present and most of them localized at the specific anatommic compartments thyroglossal duct cysts were mainly in the anterior midline portion of the neck at the level of the hyoid bone.Second branchial cleft was commonly in the posteriormargin of the subm and ibular gland and lateral to the carotid space.Dermoid cyst presented in the floor of the mouth.Conclusion CT can provide essential infonnatiom in evaluating the nature and location of the cystic mass of neck.which is of significance for diagnosis and preoperative planning.