Value of endorectal MRI and MRS in patients with elevated prostate-specific antigen levels and previous negative biopsies to localize peripheral zone tumours.

Aim: To evaluate prospectively the role of endorectal magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) in detecting peripheral zone tumour in patients with total prostate-specific antigen (PSA) values>or=4 ng/ml and one or more negative transrectal ultrasound (TRUS) biopsy rounds.

Material And Methods: Fifty-four consecutive men (mean age 65.4+/-5.

[Venogenic impotence. Surgical treatment: reasons of a partial disappointment].

Erectile dysfunction is a multifactorial disease. The veno-occlusive dysfunction is a frequent and important cause of erectile dysfunction and it is more broad than originally proposed because it seems to result from a defect within the corporal body rather than the veins themselves. It is important to emphasize that veno-occlusive dysfunction may be caused also by pharmacological and biochemical changes of the smooth muscle cells of the corpora.