Recurrent urethral tumor with neuroendocrine differentiation in a female patient after radical cystectomy for bladder cancer.

Introduction: Urethral recurrence after radical cystectomy in female patients with bladder cancer is relatively uncommon. Recurrent bladder tumors with neuroendocrine differentiation are extremely rare.

Case Presentation: A 71-year-old female patient who underwent radical cystectomy for bladder cancer presented with vaginal bleeding 19 months postoperatively.

Laparoscopic Non-clamping Tumor Enucleation of Renal Hilum Schwannoma in a Single Kidney: A Case Report.

A 56-year-old woman underwent laparoscopic right nephrectomy due to pyonephrosis associated with right ureteral stones. Moreover, the patient developed a brain stem hemorrhage and became bedridden. At the time of nephrectomy, a renal tumor, with a size of 24 × 24 × 20 mm, was observed in the left renal hilum; the tumor did not show contrast enhancement on computed tomography.

Spontaneous renal artery aneurysm rupture in a patient with neurofibromatosis type 1 without risk factors for renal artery aneurysm rupture.

Vascular abnormalities in neurofibromatosis type 1 (NF-1) are rare but sometimes fatal. We report a case of spontaneous rupture of a left renal artery aneurysm in a patient with NF-1. A 41-year-old nonpregnant normotensive woman known to have NF-1 presented to our emergency department with left flank pain.

[Laparoscopic excision of infected urachal remnant: a case report].

A 18-year-old man presented with fever and periumbilical nodule. Computed tomography (CT) showed complicated abscess of urachal remnant and laparoscopic surgery was performed transperitoneally via 3 ports. Laparoscopic excision of urachal remnant was first demonstrated in 1992 by Neufung et al, and in Japan first case was reported in 1998 by Ohmori et al.

[Clinical assessment of perioperative course of patients undergoing laparoscopic nephrectomy or adrenalectomy without perioperative bowel management].

Thirty-one patients underwent laparoscopic radical nephrectomy and 27 patients underwent laparoscopic adrenalectomy from January, 2005 to September, 2009 by a single surgeon authorized by the Japanese Society of Endourology and ESWL. Six patients (radical nephrectomy in 3, adrenalectomy in 3) received perioperative and 52 patients (radical nephrectomy in 28, adrenalectomy in 24) did not. The time of pneumoperitoneum, amount of blood loss, postoperative body temperature and complications revealed no obvious problems in the cases without bowel management.

Enhanced antitumor effect of combination intravesical mitomycin C and bacillus Calmette-Guerin therapy in an orthotopic bladder cancer model.

Intravesical immunotherapy with bacillus Calmette-Guerin (BCG) is currently the most successful adjuvant agent for the treatment and/or prophylaxis of non-muscle-invasive bladder cancer (NMIBC). However, NMIBCs recur in 60-70% of cases and 30% of these recurrent tumors present with a higher grade and more invasive properties. Patients that do not respond to intravesical BCG therapy are considered to be a challenge for urologists.

Enhanced antitumor effect of coincident intravesical gemcitabine plus BCG therapy in an orthotopic bladder cancer model.

Objectives: To evaluate the antitumor effect of the coincident administration of intravesical gemcitabine (Gem) plus bacillus Calmette-Guérin (BCG) in an orthotopic bladder cancer model.

Methods: We evaluated the cytotoxic effect of gemcitabine against MBT-2 cells in vitro. Orthotopic tumors were established by implanting MBT-2 cells into the bladder of syngeneic female C3H mice.

Leiomyoma of the bladder presenting as acute urinary retention in a female patient: urodynamic analysis of lower urinary tract symptom; a case report.

Background: Most bladder tumors are derived from the urothelium. Benign mesenchymal tumors are rare. Leiomyoma of the bladder is the most common benign neoplasm.