Renal angiomyolipoma with contrast-enhancing elements mimicking renal malignancy: radiographic and pathologic evaluation.

The diagnosis of angiomyolipoma can typically be made on the basis of characteristic computed tomography findings. Varying tissue compositions within an angiomyolipoma can create difficulty in pathologically differentiating benign from malignant lesions. Epithelioid angiomyolipoma is a variant of angiomyolipoma characterized by the presence of epithelioid cells.

Treatment of primary bladder neck obstruction in women with transurethral resection of the bladder neck.

Purpose: We describe the presentation, clinical characteristics, treatment and followup of a series of women with primary bladder neck obstruction (PBNO).

Materials And Methods: A patient data base was searched for women who underwent transurethral resection for bladder outlet obstruction diagnosed by videourodynamic study (VUDS) according to the Blaivas-Groutz nomogram for female bladder outlet obstruction between 1993 and 2002. A total of 37 women with obstruction were identified.

Postmortem sperm retrieval: the effect of instituting guidelines.

Purpose: Postmortem sperm retrieval (PMSR) raises serious medical and ethical concerns. In this study we report the effect of intra-institutional guidelines developed for the permissibility of the procedure on the number of procurement procedures performed.

Materials And Methods: The family members of 22 men who died suddenly sought PMSR.

Artificial graft slings at the midurethra: physiology of continence.

Surgeons have performed multiple variations of the pubovaginal sling procedure in an attempt to achieve reproducible results. In this review, the potential mechanisms by which midurethral slings restore continence are discussed. Surgical techniques are described and the results of recently published data in the literature are presented.

The role of partial nephrectomy in the treatment of pediatric renal hypertension.

Purpose: From 5% to 25% of hypertension in children is renovascular compared with only 1% in adults. Although much attention is given to renovascular disease involving the main renal arteries, renin producing renal disease may also be intrarenal, involving abnormalities of the segmental vessels or renal parenchyma. We present our results of partial nephrectomy in this unique group of pediatric patients with hypertension in whom renin dependent hypertension involved only a segment of the kidney.

Men with nonobstructive azoospermia have Leydig cell hypertrophy but not hyperplasia.

Purpose: We determined whether testicular histology in men with spermatogenic failure due to nonobstructive azoospermia shows true Leydig cell hyperplasia.

Materials And Methods: Testicular biopsy specimens from 17 patients evaluated for infertility were retrospectively analyzed. Interstitial, tubular and Leydig cell volume were quantitatively evaluated.