王骋　田冲　刘江勇　曾宪春

[摘要] 目的 探讨肾脏嗜酸细胞腺瘤的CT诊断要点，以提高对该病的临床认识和诊断准确性。方法 对该院2013年4月—2017年11月该院收治的9例经病理确诊的肾嗜酸细胞腺瘤的CT表现进行回顾性分析，比较病变形态、密度均匀性、边缘边缘、强化特征等CT征象。结果 9例肿瘤均为单发，呈类圆形，平扫8例呈等或稍高密度、边缘不清，6例密度均匀，1例中央可见低密度瘢痕影。增强后7例肿瘤明显强化，4例轻度强化，均有“快进慢出”型强化特征，其中l例部分肿瘤实质还有渐进性强化表现；1例中央可见星状或小片状无明显强化区。结论 肾脏嗜酸细胞腺瘤多为单发的富血供肿瘤，边界清晰，强化均匀，当肿瘤内出现裂隙状或星芒状瘢痕时，有特征性诊断价值。

[关键词] 肾脏；嗜酸细胞腺瘤；计算机体层成像；影像征象；诊断

[中图分类号] R5 [文献标识码] A [文章编号] 1674-0742（2018）04（c）-0180-03

Analysis of Multi-spiral CT of Renal Oncocytoma

WANG Pin， TIAN Chong， LIU Jiang-yong， ZENG Xian-chun

Department of Radiology， Guizhou Provincial Peoples Hospital， Guiyang， Guizhou Province， 550002 China

[Abstract] Objective To study the CT diagnosis key points of renal oncocytoma to improve the clinical awareness and diagnosis accuracy of the disease. Methods 9 cases CT manifestations of renal oncocytoma confirmed by the pathology in our hospital from April 2013 to November 2017 were reviewed， and the CT signs such as lesion morphology， density uniformity， marginal edge and enhancement features were compared. Results The tumors of 9 cases were single， and 8 cases showed equal high or slightly high density after the plain scanning， and 6 cases were homogeneous density， and 1 cases showed low density cicatricial shadow in center， and the tumors of 7 cases were obviously enhanced， and 4 cases were enhanced mildly， with the “fast -in and slow-out enhancement” features， and some tumor parenchyma of 1 case had the progressive enhancement manifestations， and 1 cases were in the stellate or fragmentis shapes， without obvious enhancement region. Conclusion The renal oncocytoma is mostly the single tumors in abundant blood supply with clear boundary and homogeneous enhancement， which has the characteristic diagnostic value when the crack-shaped or stellate-shaped scars occur.

[Key words] Renal； Oncocytoma； Computer tomography； Imaging signs； Diagnosis

腎脏嗜酸细胞腺瘤（Renal oncocytoma，RO）是一种起源于肾皮质近曲小管上皮的少见良性肿瘤，约占肾脏肿瘤的3% ～7%[1-2]。临床症状一般不典型，常由于对其缺乏认识而误诊为肾癌而过度治疗，如行患侧肾脏切除，为患者身心带来极大负担[3]。因而术前准确诊断较为重要[4]。该文回顾性分析该院2013年4月—2017年11月近4年来经手术病理证实的9例RO的MSCT影像表现及特征，旨在提高对该病的临床认识和影像诊断准确性，为临床治疗方案的选择提供依据，现报道如下。

1 资料与方法

1.1 一般资料

9例肾嗜酸细胞腺瘤均经手术病理确诊，男4例，女5例，年龄26～78岁，平均（52.3±6.4）岁。……