[Ultrasound morphology of prostatic apex: implications for its dissection in prostatectomy]

The prostatic apex can present various morphologies. Myers, on the basis of prostatectomy specimens classified these into two main groups: prostates without an anterior dip (doughnut shaped) and those with an anterior dip (croissant shaped). Surgical duration for prostatectomy known as "apical dissection" must be altered depending on the morphology of the prostatic apex, to prevent incomplete resection of the gland. With transrectal ultrasound performed during transrectal biopsy, the morphology of the apex can be established in each gland. This would help us to plan dissection of the apex in each specific case, avoiding unwanted dissection of the posterior lip of the prostatic apex.