摘要
目的探讨儿童腹膜后神经母细胞瘤的CT特征以及螺旋CT扫描在其临床诊断中的价值。方法回顾经手术、活检和病理证实的49例腹膜后神经母细胞瘤病人影像资料,分析肿瘤的CT征象。结果 9例患儿腹膜后神经母细胞瘤均为原发病灶,原发于肾上腺者27例,腹部盆腔交感神经链者22例。CT表现仅1例有2个病灶,其余均为单发。瘤体多巨大,形态不规则,密度不均,内见囊变坏死。其中33例病灶有钙化。34例边界不清,15例界限清晰。增强后大多数肿瘤呈轻至中度不均匀强化,发现腹膜后淋巴结转移8例,颈部淋巴结转移3例。肿瘤易侵犯邻近组织器官,部分出现远距离转移。结论螺旋CT不仅能显示腹膜后神经母细胞瘤的位置、大小、形态、密度及周围侵犯、转移情况,而且可显示早期淋巴结转移,对肿瘤的诊断、鉴别诊断、制订治疗方案及预后起着重要作用。
Objective To analyze the CT characteristics of children with retroperitoneal neuroblastoma and to evaluate the diagnostic value of spiral CT.Methods The CT images of 49 children with retroperitoneal neuroblastoma which were confirmed by surgery or biopsy and pathology were analyzed retrospectively.Results All the retroperitoneal neuroblastomas were primary lesions,27 cases in the adrenal gland and 22 cases on abdominal pelvic sympathetic chain.CT showed 1 case with 2 lesions,the remaining cases had single lesion.The tumors were mostly single large mass with inhomogeneous density,shape was irregular,necrosis was common,and calcification was identified in 33 cases.Vague boundary was noticed in thirty-four cases,and sharp demarcation in fifteen cases.On enhanced CT images,most of the lesions showed mild or moderate enhancement.Eight cases had retroperitoneal lymph node metastasis,3 cases present cervical lymph node metastasis.The tumors commonly invaded nearby tissue and organs,metastasis was common,and long distant metastasis was present in some cases.Conclusion Spiral CT not only provides the information of retroperitoneal neuroblastoma＇s location,size,shape,density,and the surrounding invasion,long distance metastasis,and early lymph node metastasis.CT plays an important role in diagnosis,differential diagnosis,planning treatment,and predicting prognosis.
出处
《国际医学放射学杂志》
2014年第2期106-109,共4页
International Journal of Medical Radiology
