腹部隐睾合并肿瘤的MSCT征象分析

MSCT Diagnosis of Abdominal Cryptorchidism with Tumors

目的探讨腹部隐睾合并肿瘤的多层螺旋CT(MSCT)征象。资料与方法回顾性分析经手术病理证实的7例腹部隐睾肿瘤患者的MSCT表现及血供特征。结果 7例中5例肿块位于右侧腹膜后,2例位于盆腔腹膜外。CT示肿瘤有完整或不完整包膜,密度多不均匀,1例内部较多"条网"状钙化;增强扫描实性部分轻-中度强化,4例瘤体内可见"索条"状纤维血管分隔;多平面重组(MPR)或容积再现(VR)重组示肿块长轴多与睾丸下行途径一致,1例毗邻腹股沟管内口肿块可见"指"状突起;血管成像可显示肿瘤供血动脉为同侧睾丸动脉,2例显示睾丸静脉引流;同侧精索结构均未见显示。结论腹部隐睾肿瘤有一定影像学特征,MSCT与后处理技术联合使用是术前定位定性诊断的有效影像学检查手段。

Objective To explore MSCT imaging features of tumors of abdominal cryptorchism.Materials and Methods MSCT characteristics and the tumor vessel in 7 patients with tumors of abdominal cryptorchism confirmed by pathology were analyzed retrospectively.Results In 7 patients with tumors of abdominal cryptorchid,5 cases located in the retroperitoneal space of right iliac fossa,2 cases in pelvis.CT findings were as follows：the tumors were with complete（n=5） or incomplete（n=2） capsule,primarily heterogeneous in density,and strip mesh calcification were found in 1 case.The solid part of all the 7 tumors showed light to moderate enhancement on post contrast CT images,and 4 tumor body manifestated strip vessel appearance interval.The appearance of the long axis of the tumors consistent with the regular descending course of embryonic testes were clearly dispalyed on MPR and VR images.Finger like enation was found in 1 tumor adjacent to the deep inguinal ring.The feeding artery of 1 tumor was the same side testicular artery.The venous drain of 2 tumors was the same side testicular vein.All of the 7 cases,the spermatic cord structures of the ipsilateral inguinal canal were not demonstrated on the CT images.Conclusion There are some considerably specific CT features in the cases with tumors of abdominal cryptorchism.The MSCT with its multi mode post processing technology is an effective imaging modality for localization and qualitation of the disease.