CAJ | 학술논문

目的探讨肾嫌色细胞癌的多层螺旋CT（MSCT）表现，提高对本病的认识及诊断水平。资料与方法回顾性分析经手术病理证实的17例肾嫌色细胞癌患者的MSCT表现，所有患者均行MSCT平扫及多期动态增强扫描。结果17例均为单发实质性圆形或椭圆形软组织肿块。MSCT平扫显示病灶密度均匀；增强扫描显示11例呈轻、中度均匀强化，皮髓期强化程度均明显低于肾皮质，高于肾髓质者9例，近似于肾髓质者2例；实质期病灶密度明显低于肾实质。增强扫描显示6例不均匀强化，其中1例病灶内出现小片状坏死，1例病灶内显示星状低密度瘢痕区。结论肾嫌色细胞癌MSCT平扫呈均匀密度类圆形实性肿块，增强扫描呈轻、中度均匀或不均匀强化，可以为术前诊断提供参考。
목적탐토신혐색세포암적다층라선CT（MSCT）표현，제고대본병적인식급진단수평。자료여방법회고성분석경수술병리증실적17례신혐색세포암환자적MSCT표현，소유환자균행MSCT평소급다기동태증강소묘。결과17례균위단발실질성원형혹타원형연조직종괴。MSCT평소현시병조밀도균균；증강소묘현시11례정경、중도균균강화，피수기강화정도균명현저우신피질，고우신수질자9례，근사우신수질자2례；실질기병조밀도명현저우신실질。증강소묘현시6례불균균강화，기중1례병조내출현소편상배사，1례병조내현시성상저밀도반흔구。결론신혐색세포암MSCT평소정균균밀도류원형실성종괴，증강소묘정경、중도균균혹불균균강화，가이위술전진단제공삼고。
Purpose To explore the multislice spiral CT (MSCT) features of renal chromophobe carcinoma, and to improve the understanding and diagnosis of the disease. Materials and Methods MSCT features of 17 patients with renal chromophobe carcinoma confirmed by surgical pathology were retrospectively analyzed, plain MSCT and multi-phase dynamic contrast-enhanced scan were applied to these patients. Results Single substantive round or oval-shaped soft tissue mass was demonstrated in 17 cases. The lesions were all uniform density on plain MSCT, and mild to moderate homogeneous enhancement in 11 cases on enhanced MSCT, including 9 cases with significant enhancement above the renal medulla and below the renal cortex, and 2 cases with similar enhancement to renal medulla in corticomedullary phase. On nephrographic phase the lesion showed significant lower density than renal medulla. Heterogeneous enhancement presented in 6 cased, including 1 case with small necrosis and 1 case with stellate scar lesion in low-density. Conclusion Renal chromophobe carcinoma demonstrates a round solid mass of uniform density on plain MSCT, and mild to moderate homogeneous and heterogeneous, which can provide the reference value for preoperative diagnosis.