Gevenois P A, Van Sinoy M L, Sintzoff S A, Stallenberg B, Salmon I, Van Regemorter G, Struyven J
Department of Radiology, Cliniques Universitaires de Bruxelles, Hôpital Erasme, Belgium.
AJR Am J Roentgenol. 1990 Nov;155(5):1021-4. doi: 10.2214/ajr.155.5.2120929.
Cysts of the prostate and seminal vesicles are confusing abnormalities because they are uncommon and their origin is uncertain. Several approaches to diagnosis have been used, most recently CT and transrectal sonography. In this study, we investigated the value of MR imaging in the diagnosis of six cases of prostatic cyst and five cases of cysts of the seminal vesicles. All patients were symptomatic. T1- and T2-weighted spin-echo images were obtained in all cases; pathologic confirmation was available in four patients. MR images were analyzed prospectively without knowledge of clinical data or the results of other imaging procedures. In all cases, low- and high-signal masses were observed on T1- and T2-weighted images, respectively. The cysts were unilocular with a sharply defined margin, ranging from 0.5 to 3.0 cm in diameter. The thin wall was of low signal intensity on T2-weighted images. Our experience suggests that MR imaging is useful in demonstrating the liquid content of prostatic and seminal-vesicle cysts and in establishing their size and location.
前列腺囊肿和精囊囊肿是令人困惑的异常情况，因为它们并不常见且起源不明。已经采用了多种诊断方法，最近的是CT和经直肠超声检查。在本研究中，我们调查了磁共振成像（MR成像）在诊断6例前列腺囊肿和5例精囊囊肿中的价值。所有患者均有症状。所有病例均获取了T1加权和T2加权自旋回波图像；4例患者有病理证实。在不了解临床资料或其他成像检查结果的情况下，对MR图像进行了前瞻性分析。在所有病例中，T1加权和T2加权图像上分别观察到低信号和高信号肿块。囊肿为单房性，边界清晰，直径为0.5至3.0厘米。薄壁在T2加权图像上呈低信号强度。我们的经验表明，MR成像有助于显示前列腺囊肿和精囊囊肿的液体成分，并确定其大小和位置。
