The koala (Phascolarctos cinereus) prostate: a comprehensive histological and immunohistochemical investigation.

The prostate of the koala (Phascolarctos cinereus), and of marsupials more generally, is the primary contributor of seminal fluid, yet comparatively little is known about its microanatomy or biochemistry. This study explored evidence of parenchymal segmentation of the koala prostate. The prostate of three sexually mature koalas were processed for histopathology, histochemistry (Masson's trichrome, Alcian Blue, periodic acid Schiff staining), and immunohistochemistry using basal (tumor protein 63, cytokeratin 14) and luminal (cytokeratin 8/18, prostate specific antigen, androgen receptor) markers.

Transurethral ultrasound-guided laser-induced prostatectomy: National Human Cooperative Study results.

Between November 1990 and March 1992, 150 patients at 10 United States institutions were treated with transurethral ultrasound-guided laser-induced prostatectomy (TULIP) for the relief of bladder outlet obstruction secondary to benign prostatic hypertrophy. The TULIP system incorporates ultrasound visualization with a 90-degree angle, side-firing laser to effect coagulation necrosis of prostate tissue. The overall preoperative prostate volume in this TULIP study was 40 cc and all types of prostatic enlargement, including median lobe obstruction, were treated.

Post prostatectomy bladder neck contractures.

An 8% and 7% incidence of bladder neck contractures (BNC) requiring relief by transurethral incisions (TUI), (124) was found after review of 1471 TURP's and 71 retropubic prostatectomies. Prevention of BNC was attempted by leaving a one centimeter strip at the time of TURP (62), incising the bladder neck alone (42), or incising the bladder neck and interureteric ridge (65). Bladder neck obstruction occurred in 4.

Butorphanol and meperidine compared in patients with acute ureteral colic.

Pain relief was evaluated in 81 patients with acute ureteral colic and the confirmed presence of a calculus. A randomized double-blind comparison of intramuscular 2 and 4 mg. butorphanol and 80 mg.

Unusual incidence of testicular tumors.

Although carcinoma of the testicle is a rare lesion, one family physician saw three cases in 18 months. He diagnosed all correctly and referred the patients for treatment immediately. All three patients are living and well.

Bypass operation for post-cystectomy intestinal obstruction.

A method for an intestinal bypass operation is presented. The procedure has been valuable in patients with post-cystectomy intestinal obstruction who did not respond to non-operative measures. A discussion on the possible means to prevent further obstruction is included.

Renal cell carcinoma in repeat diagnostic study for persistent hematuria.

A review of 7 cases of misleading, early diagnosis of hematuria is presented. Each patient was found to have renal cell carcinoma on a repeat study for persistent hematuria. Surgical and postoperative followup results are included.