原发性腹膜后肿瘤的CT诊断

目的探讨原发性腹膜后肿瘤的CT诊断与鉴别诊断。方法回顾分析23例经病理证实的原发性腹膜后肿瘤CT资料。结果23例原发性腹膜后肿瘤,有11种病理结果。间叶组织来源的14例,12例为恶性;神经组织起源的4例,均为良性;残余胚胎组织起源的4例,3例为良性,1例为恶性;来源不明的1例为恶性。大部分具有此部位肿瘤共同的CT征象,但又各具有一定特征。结论原发性腹膜后肿瘤种类繁多,观察肿瘤的CT征象,同时结合病人的病史、年龄、部位有助于正确的组织学分类诊断,从而提高对其的定性诊断。

CT Diagnosis of Primary Retroperitoneal Neoplasm

Objective To study CT diagnosis and differential diagnosis of primary retroperitoneal neoplasm(PRN).Methods CT data in 23 cases of PRN confirmed by pathology were retrospectively analysed.Results There were 11 results of pathology in 23 cases,of them,14 cases were mesenchymal tissue-origin(12 cases were malignant neoplasm),4 cases were nervous tissue-origin(all benign),4 cases were rudimental embryonal tissue-origin(3 cases were benign diseases and one case was malignant),the source of unknown-origin in one case was malignant neoplasm.Most of these PRN showed such common CT manifestations as other tumors in the same location,but they had own special CT features respectively.Conclusion PRN have many typies,CT features of PRN in combination with the history,age and location can improve the diagnosis of histological classification and the diagnosis of the nature of tumors.