非特异性肉芽肿性前列腺炎类似前列腺癌3例MRI特征分析并文献复习

发布时间：2018-05-12 19:37

  本文选题：非特异性肉芽肿性前列腺炎 + 磁共振成像　； 参考：《临床放射学杂志》2017年07期

【摘要】：目的探讨非特异性肉芽肿性前列腺炎(nonspecific granulomatous prostatitis,NSGP)类似前列腺癌(PCa)的MRI特征表现。方法回顾性分析3例术前MRI表现类似PCa特征且术前误诊为PCa的NSGP患者临床、MRI及病理学资料。结果 3例PSA均有增高,平均13.18 ng/ml,病理结果均为NSGP,3例T_2WI上外围带均见低信号,2例为局灶性,1例为弥漫性;DWI上病变呈轻度扩散受限;MRS病灶ROI取点Cit/Cho+Cr值均有倒置,但Cho峰值与正常信号区相近,提示Cho为相对升高;动态增强(DCE))病变呈早期强化、后期减退,时间-信号强度曲线类型为Ⅲ型即流出型曲线。结论 NSGP多参数(T_2WI、DWI、DCE、MRS)MRI特征与Pca非常类似,但对扩散轻度受限、Cit/Cho+Cr值虽有倒置、但Cho峰值与正常信号区基本相近的病例,要考虑到NSGP的可能性,在患者行根治性手术前建议行穿刺活检,避免不必要的手术。
[Abstract]:Objective to investigate the MRI features of nonspecific granulomatous prostatitis (NSGP) similar to prostate cancer (PCA). Methods the clinical and pathological data of 3 NSGP patients who had similar PCa features before operation and misdiagnosed as PCa before operation were analyzed retrospectively. Results PSA was increased in 3 cases (mean 13.18 ng / ml). The pathological results showed that the peripheral zone of T_2WI in all 3 cases was NSGPG. All of the 3 cases had low signal intensity and 2 cases were focal lesions. One case showed mild diffusion-limited lesions on DWI. All the Cit/Cho Cr values at the ROI point of MRS lesions were inversed. However, the peak value of Cho was close to the normal signal region, suggesting that Cho was relatively elevated, dynamic contrast enhancement showed early enhancement and decreased in the later stage, and the time-signal intensity curve was type 鈪，

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