Медицинская литература. Новинки

 

 

 

 

 

 

МР-диагностика опухолевого стеноза выводного отдела семенных пузырьков при раке предстательной железы

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Magnetic Resonance Imaging of a Tumorous Occlusion of an Ejaculatory Duct at Patients with a Prostate Cancer

Analysis of 97 patients with previously diagnosed prostate cancer was made on the basis of magnetic resonance imaging (MRI) of a small pelvis. 80% (n = 78) patients had prostate cancer found using MR imaging. The spread of swelling into seminal vesicles was found in 56% (n = 44). Full substitution of seminal vesicles by swelling was found in 9% (n = 9), 2/3 of the volume of visceral seminal vesicles involvement was found in 11.35% (n = 5), 1/3 of the volume of visceral seminal vesicles involvement was found in 22.7% (n = 10). Affection only of an excretory portion (ejaculatory duct) of seminal vesicles was found in 56.7% (n = 25). In 80% (n = 35) growth of seminal vesicles swelling was accompanied by a shortening of the T2 relaxation time. In 20% (n = 9) a new sign was found that wasn't described in literature before: increasing of MR signal from seminal vesicles in T2 and reducing MR signal in T1 weighted images in conjunction with vesicles distension. A tumorous stenosis of ejaculatory duct was found. Sensitivity and specificity of MRI in identifying tumor growth in seminal vesicles, which was verified by a fine needle biopsy, came to 82% and 92% correspondingly.

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