Naik K S, Carey B M
Department of Radiology, Cookridge Hospital, West Yorkshire, UK.
Clin Radiol. 1999 Mar;54(3):173-5. doi: 10.1016/s0009-9260(99)91009-7.
Granulomatous prostatitis is a benign inflammatory condition of the prostate which can be mistaken for prostatic carcinoma both clinically and on ultrasound, but is distinguishable histologically. The transrectal ultrasound (TRUS) and magnetic resonance imaging (MRI) appearances of 10 patients with histologically confirmed granulomatous prostatitis were evaluated to try and identify any correlation between the two techniques or any specific features on MRI to help distinguish it from carcinoma. Clinical findings and serum prostatic specific antigen (PSA) levels were also evaluated.
In five patients, both TRUS and MRI were concordant, showing only changes of benign prostatic hypertrophy (three patients) or showing no abnormality (two patients). In a further three patients, both TRUS and MRI were abnormal, with appearances suggestive of carcinoma. One of these patients had tuberculous prostatitis and had a past history of tuberculosis. In the remaining two patients, there was a discrepancy between TRUS and MRI findings, carcinoma being suspected on TRUS in one with a normal MRI, and carcinoma suspected on MRI in the other with a normal TRUS.
There is no pattern of clinical, biochemical, ultrasound or MRI findings that allows a specific diagnosis of granulomatous prostatitis to be made, or differentiation from prostatic carcinoma.
肉芽肿性前列腺炎是前列腺的一种良性炎症性疾病，在临床和超声检查中都可能被误诊为前列腺癌，但在组织学上是可区分的。对10例经组织学确诊为肉芽肿性前列腺炎患者的经直肠超声（TRUS）和磁共振成像（MRI）表现进行评估，以试图确定这两种技术之间的任何相关性，或MRI上有助于将其与癌相鉴别的任何特定特征。还对临床发现和血清前列腺特异性抗原（PSA）水平进行了评估。
5例患者中，TRUS和MRI结果一致，仅显示良性前列腺增生的改变（3例）或无异常（2例）。另外3例患者中，TRUS和MRI均异常，表现提示为癌。其中1例患者患有结核性前列腺炎，有肺结核病史。其余2例患者中，TRUS和MRI结果存在差异，1例TRUS怀疑为癌但MRI正常，另1例MRI怀疑为癌但TRUS正常。
不存在能够做出肉芽肿性前列腺炎的特异性诊断或与前列腺癌进行鉴别的临床、生化、超声或MRI表现模式。
