CAJ | 학술논문

目的：探讨非特异性肉芽肿性前列腺炎的 MRI表现特点。方法：8例经病理证实的非特异性肉芽肿性前列腺炎患者行T1 WI、T2 WI、扩散加权成像（DWI）及增强检查，回顾性分析其临床及影像学表现特点。结果：8例患者病灶均为结节灶，以右侧前列腺中部外周带多见（5／8）。病灶在 T1 WI 上呈低、稍低及等信号，T2 WI 上主要为低及稍低信号， DWI上表现为高及稍高信号，表观扩散系数（ADC）图上呈局灶性低信号。4例患者行动态增强 MRI 检查，病灶明显强化，时间-信号强度曲线呈Ⅰ型（1例）或Ⅱ型强化（3例）。结论：非特异性肉芽肿性前列腺炎的常规 MRI检查缺乏特异性，而动态增强扫描可能有助于该病的诊断及鉴别诊断。
목적：탐토비특이성육아종성전렬선염적 MRI표현특점。방법：8례경병리증실적비특이성육아종성전렬선염환자행T1 WI、T2 WI、확산가권성상（DWI）급증강검사，회고성분석기림상급영상학표현특점。결과：8례환자병조균위결절조，이우측전렬선중부외주대다견（5／8）。병조재 T1 WI 상정저、초저급등신호，T2 WI 상주요위저급초저신호， DWI상표현위고급초고신호，표관확산계수（ADC）도상정국조성저신호。4례환자행동태증강 MRI 검사，병조명현강화，시간-신호강도곡선정Ⅰ형（1례）혹Ⅱ형강화（3례）。결론：비특이성육아종성전렬선염적상규 MRI검사결핍특이성，이동태증강소묘가능유조우해병적진단급감별진단。
Objective:To evaluate MRI findings of nonspecific granulomatous prostatitis (NSGP).Methods:Clinical and MR imaging findings of nonspecific granulomatous prostatitis were retrospectively reviewed in 8 men confirmed by pa-thology.Lesion shape,location and signal intensity (SI)were evaluated on T2-weighted imaging (T2 WI),diffusion-weighted imaging (DWI),and dynamic contrast enhanced MRI (DCE-MRI).Clinical findings and serum PSA levels were also evalua-ted.Results:Most lesions demonstrated slight hypo-intensity on T1 WI and slight hypo-intensity on T2 WI.On DWI,all le-sions (8/8)showed markedly high SI with decreased ADC value.Four cases showed enhancement after contrast injection in the cohort.The time-signal intensity curve (TIC)of NSGP showed a slow rise to a peak followed by a slow decline or a plateau (types Ⅰ and Ⅱ).Conclusion:Nonspecific granulomatous prostatitis has no signal specificity on conventional MR imaging,while dynamic contrast-enhanced MRI scans may be helpful in the diagnosis and differential diagnosis of the dis-ease.