摘要
目的探讨乳头状肾细胞癌的影像学特点,以提高其诊断符合率。方法利用16排螺旋CT和MRI,回顾性复习25例手术病理证实的乳头状肾细胞癌的CT、MRI表现,对肿块的边界、大小、均匀度及强化度等因素进行分析。结果 25例乳头状肾细胞癌平扫期密度较均匀,增强后强化程度较低。核磁肿瘤信号均匀或不均匀;呈混杂信号、中低信;呈轻中度强化;实性肿瘤为不均匀强化或均匀轻度强化。结论乳头状肾细胞癌体积小时一般密度均匀、边界光整,增强后强化程度较肾实质明显偏低,但也可出现体积较大、强化明显、囊变坏死或周边侵犯及转移等表现。CT、MRI表现为平扫肿瘤密度/信号较均匀,内有灶状出血坏死和钙化,增强扫描肿瘤呈较均匀或不均匀强化。CT和MRI对乳头状肾癌的早期诊断帮助很大,尤其是16排螺旋CT,对乳头状肾细胞癌的诊断准确性较高。
Objective To explore the radiographic manifestations of papillary renal cell carcinoma,and to improve the diagnostic accuracy.Methods The boundary,size,degree of uniformity and enhanced of 25 cases with papillary renal cell carcinoma were reviewed retrospectively by 16-slice spiral CT and MRI.Results The radiographic manifestations showed homogeneous density,degree of enhanced was lower.On the MRI,the signal was homogenous or no homogenous,showed mixed signs and low and middle signal.The radiographic manifestations had a low and middle enhancement,solid tumor showed irregular enhanced and regular minimal enhancement.Conclusion The manifestation of CT and MRI show regular signal,has hemorrhagic necrosis and calcification,show homogenous or no homogenous signal after enhancement.CT and MRI are good for early diagnosis of papillary renal cell carcinoma,especially 16-slice spiral CT,the diagnosis accuracy is higher for papillary renal cell carcinoma.
出处
《中国实用医药》
2011年第33期43-44,共2页
China Practical Medicine
关键词
乳头状肾细胞癌
影像学表现
Papillary renal cell carcinoma
Radiographic manifestations
