摘要
目的分析几种肾脏少见肿瘤的CT表现,探讨其CT诊断价值。方法回顾性分析经手术病理证实的13例肾脏少见肿瘤患者的CT表现,观察瘤体的位置、包膜、密度、强化等情况,对比分析其影像学特点。结果原发性肾淋巴瘤5例,均位于肾髓质,4例浸润肾皮质,3例浸润肾盂,呈实性;2例呈实质肿块型,有包膜,密度均匀,增强扫描呈轻度强化,并可见肿瘤包绕血管征;3例呈弥散浸润型,密度不均,无包膜,增强扫描呈轻度强化。肾炎性肌纤维母细胞瘤3例,1例位于肾皮质,2例位于肾髓质,呈实性,均有包膜,密度均匀,增强扫描呈轻至中度强化。混合性上皮间质肿瘤3例,囊实性,均位于肾髓质,有包膜,皮质受压但无侵犯,增强扫描实性成分呈轻至中度强化。血管周细胞瘤2例,呈实性,位于肾皮质,有包膜,密度均匀,增强扫描呈明显血管样强化。结论 CT对肾脏少见肿瘤的诊断有重要价值,通过分析瘤体的位置、包膜、密度、强化方式等特点,有助于提高对该病诊断的准确性。
Objective To analyze the CT features of several rare renal tumors , so as to improving the diagnosis. Methods 13 cases of rare renal tumors, confirmed by surgery and pathology, were retrospectively analyzed. The CT features,including position, appearance, density, capsules, degree and pattern of enhancement were observed. Results 5 cases were primary lymphoma（PRL）. All the PRL were located in the renal medulla, 4 tumors extended to renal cortex and 3 tumors extended to renal calyx. PRL showed substantial type in 2 cases, with capsule, mild enhancement, blood vessels surrounding tumors ; PRL showed diffuse infiltrative type in 3 cases, with heterogeneous density, no capsule, mild enhancement. 3 eases were inflammatory myofibroblastic tumor （ IMT）, 1 tumor was located in the renal cortex, 2 were in the renal medulla. The IMT showed solid tumors, with capsule, iso density, and mild to moderate enhancement. 3 cases were mixed epithelial and stromal tumor （MEST）. MEST located in the renal medulla, with cystic density, capsule, mild to moderate enhancement. Cortical showed compressed but without infiltrated in MEST. 2 cases were hemanyiopericytoma （HA）, HA located in renal cortex, with solid and homogeneous density, capsule, blood vessel like enhancement. Conclusion Analyzing the CT features of the rare renal tumors are important for improving the diagnosing accuracy.
出处
《临床放射学杂志》
CSCD
北大核心
2012年第6期844-847,共4页
Journal of Clinical Radiology
