[Value of radiological investigations in patients with dysuria after prostatic adenomectomy (author's transl)].

Dysuria is a relatively frequent complication after prostatic adenomectomy. The authors review 107 patients with this complication and demonstrate that radiological investigation, including a micturition study, preferably after IVU, shows the presence of an obstructive cause for the dysuria in the vast majority of cases (92.5%). There are two main types of obstructive lesion: - parietal stenosing lesions, - compression lesions. - The most frequent parietal stenosing lesions, apart from those of the bladder neck, are urethral stenoses. - Stenoses with total compression of the capsule are often the cause of severe dysuria. - Localized compression of the capsule and urethral stenosis usually cause only moderate dysuria. - An irregular lacunar image should suggest cancer of the prostate.