CAJ | 학술논문

目的探讨肾肿瘤回声强度差异与瘤体脂肪含量的相关性.方法术前超声检查52例最大径≤3 cm的肾肿瘤,将其回声强度分为回声增高型(包括高回声、稍高回声)和回声减低型.分析回声强度与肿瘤脂肪染色强度的相关性.结果 18例良性肾肿瘤中高回声14例(77.8％),均为血管平滑肌脂肪瘤;低回声4例(22.2％),2例为乏脂肪的血管平滑肌脂肪瘤,2例为少见的良性肿瘤;未见稍高回声病例.34例肾恶性肿瘤中稍高回声27例(79.4％),透明细胞性肾癌22例,乳头状肾细胞癌5例;低回声7例(20.6％),透明细胞性肾癌2例,乳头状肾细胞癌3例,嫌色细胞性肾癌2例;未见高回声病例.41例回声增高型的肾肿瘤脂肪染色均为阳性,11例回声减低的肾肿瘤中9例脂肪染色阴性,2例脂肪染色阳性,二者差异有统计学意义.结论肾肿瘤回声强度与瘤体脂肪含量有明显相关性.富含脂肪成分的肾肿瘤表现为回声增高型,乏脂肪的肾肿瘤表现为回声减低型.
목적 탐토신종류회성강도차이여류체지방함량적상관성.방법 술전초성검사52례최대경≤3 cm적신종류,장기회성강도분위회성증고형(포괄고회성、초고회성)화회성감저형.분석회성강도여종류지방염색강도적상관성.결과 18례량성신종류중고회성14례(77.8％),균위혈관평활기지방류;저회성4례(22.2％),2례위핍지방적혈관평활기지방류,2례위소견적량성종류;미견초고회성병례.34례신악성종류중초고회성27례(79.4％),투명세포성신암22례,유두상신세포암5례;저회성7례(20.6％),투명세포성신암2례,유두상신세포암3례,혐색세포성신암2례;미견고회성병례.41례회성증고형적신종류지방염색균위양성,11례회성감저적신종류중9례지방염색음성,2례지방염색양성,이자차이유통계학의의.결론 신종류회성강도여류체지방함량유명현상관성.부함지방성분적신종류표현위회성증고형,핍지방적신종류표현위회성감저형.
Objective To discuss the relationship between echogenicity and fat content in renal tumor.Methods 52 renal tumors were examined with preoperative ultrasonography,all tumors were 3 cm in diameter or less.The tumor echogenicity was classified as echogenicity increasement type (including hyperechoic and slightly hyperechoic) and echogenicity decreasement type (hypoechoic).The relationship between echogenicity and adipose staining in tumor were analyzed.Results In 18 cases pathologically proved benign renal tumor,14(77.8 ％) of the tumors were hyperechoic and were angiomyolipoma(AMLs),4(22.2％) of the tumors were hypoechoic including 2 poor fat AMLs and 2 rare benign tumors,slightly hyperechoic case was not detected.In 34 cases malignant renal tumors,27(79.4％) of the tumors were slightly hyperechoic including 22 clear cell renal cell carcinomas (RCCAs) and 5 papillary RCCAs,7 (20.6％) of the tumors were hypoechoic including 2 clear cell RCCAs,3 papillary RCCAs and 2 chromophobe RCCAs.Hyperechoic case was not detected.The adipose staining of 41 cases of echogenicity increasement type was all positive,in the 11 cases of echogenicity decreasement type,9 tumors were adipose staining negative,while the other 2 tumors were positive,and there were statistically significant between two groups (P ＜0.05).Conclusions Echogenicity was obviously correlate with fat content in renal tumor.Tumors containing rich fat appear to be increased in echogenicity,tumors without fat content appear to be decreased in echogenicity.