阑尾囊性病变的CT诊断与鉴别

CT diagnosis and differential diagnosis of appendiceal cystic lesions

目的:探讨阑尾囊性病变的CT诊断和鉴别。方法:收治阑尾囊性病变患者150例,均接受CT诊断和临床病理学诊断。结果:CT平扫显示病灶均为右下腹圆形和椭圆形及分节条状低密度的囊性肿块,在囊壁上伴有斑片状钙化4例;增强扫描可以看到囊壁有轻度和中度强化。出现阑尾周围系膜条状密度逐渐增高28例,发生病灶周围肠壁水肿和明显强化20例。发生囊内结石8例,发生腹腔积液6例,同时并发腹腔假性黏液瘤2例。结论:阑尾囊性的病变不同,在CT中的表现存在特征性。对于此类病变患者,实施CT检查与多平面的重组临床诊断措施,可以帮助阑尾囊性病变的进一步诊断及鉴别。

Objective:To explore the CT diagnosis and differential diagnosis of appendiceal cystic lesions.Methods:150 patients with appendiceal cystic lesions were selected,they received CT diagnosis and clinical pathological diagnosis.Results:CT plain scan showed that the lesions were round,oval and segmented low density cystic masses in the right lower quadrant,4 cases had plaque calcification on the cyst wall.Enhanced scanning showed mild and moderate enhancement of the cyst wall.The density of the surrounding mesentery strip in 28 cases was gradually increased,20 cases had edema and obvious enhancement of intestinal wall around the lesion.There were 8 cases of cystic calculus,6 cases of ascites and 2 cases of abdominal pseudomyxoma.Conclusion:The cystic lesions of appendix were different,and their manifestations in CT were characteristic.For patients with such lesions,CT examination and multi-plane reconstruction of clinical diagnostic measures can help further diagnosis and differential diagnosis of appendix cystic lesions.