[A Case of Robotic-Assisted Surgery for Simultaneous Triple Cancer of Rectum, Bladder, and Prostate].

The patient was a 70s man, whose chief complaint of Hematochezia. He visited neighborhood hospital and was diagnosed with lower rectal cancer by colonoscopy. Preoperative CT showed a mass in the bladder, which led to a diagnosis of multiple early stage bladder cancer after a thorough urological examination.

[A Case of Sigmoid Colon Cancer with Bladder Invasion That Could Be Treated with Neoadjuvant Chemotherapy to Preserve the Bladder].

The patient was male, 50s. He visited his local doctor with complaints of hematochezia and hematuria. He underwent colonoscopy, which revealed a circumferential lesion in the sigmoid colon, and he was referred to our department for further examination and treatment.

A case of steroid-resistant cystitis as an immune-related adverse event during treatment with nivolumab for lung cancer, which was successfully treated with infliximab.

Introduction: Immune checkpoint inhibitors are widely used in various cancers as a standard treatment. However, while various immune-related adverse events related to immune checkpoint inhibitors have been reported, there are few reports of lower urinary tract symptoms.

Case Presentation: The patient was a 60-year-old man with primary lung cancer who was receiving long-term nivolumab therapy.

[Two Cases of Unilateral Multifocal Renal Cell Carcinoma Treated with Robot-Assisted Partial Nephrectomy].

Recently, robot-assisted laparoscopic partial nephrectomy (RAPN) has become a commonly performed surgical treatment for small renal tumors, but for difficult cases, such as those presenting with multiple tumors, there are few institutions with experience. We herein report two cases of unilateral multifocal renal cell carcinoma that were successfully treated with RAPN. Case 1: A 65-year-oldwoman was incidentally identified to have two right kidney tumors on imaging.

[Treatment of Parastomal Hernia Following Robot-Assisted Radical Cystectomy and Cutaneous Ureterostomy : A Case Report].

The patient was an 82-year-old woman with localized muscle-invasive bladder cancer, who underwent robot-assisted radical cystectomy and cutaneous ureterostomy. On the 3rd day after the operation, she suddenly complained of abdominal pain. Abdominal computed tomographic scans revealed parastomal hernia.

[A Case of IgG4-Related Disease Diagnosed by Prostate Biopsy].

A 74 year-old man presented with complaints of dysuria and miction pain. Since the prostate volume was 43.5 ml, the patient was scheduled for surgical treatment of benign prostatic hyperplasia.

The Use of CT-Guided Marking for the Laparoscopic Resection of a Solitary Retroperitoneal Metastasis of Colon Cancer.

CT-guided marking technique is rarely used in abdominal or urologic surgery. We developed and performed a marking technique for a small tumor, undetectable by ultrasound, using CT guidance before laparoscopic resection of the tumor. A 73-year-old woman with a history of breast cancer underwent right colectomy with D3 lymph node dissection for ascending colon cancer.

[Two Cases of Urethral Clear Cell Adenocarcinoma with Suspected Recurrence of Uterine Cancer].

Herein, we report two cases of urethral clear cell carcinoma in two patients who had previously undergone radical hysterectomyfor utetine cancer. Case 1 presented with bloodyvaginal discharge and case 2 presented with acute urinaryretention. Magnetic resonance imaging revealed a periurethral tumor in both cases.

[Amyloidosis of the ureter arising secondarily to the systemic lupus erythematosus : a case report].

A 55-year-old man was referred to our department with the chief complaint of left flank pain. Computed tomography and magnetic resonance imaging demonstrated a left hydronephroureter due to the ureteral stenosis with a mass. We considered the possibility of a malignant neoplasm, and performed laparoscopic left total nephroureterectomy.

Post-chemotherapy nerve-sparing laparoscopic retroperitoneal lymph node dissection in stage IIB testicular cancer.

We report our experience of extraperitoneal nerve-sparing laparoscopic retroperitoneal lymph node dissection after chemotherapy. Six patients were diagnosed with non-seminomatous germ cell tumor after orchiectomy and clinical stage IIB disease. Nerve-sparing laparoscopic retroperitoneal lymph node dissection was carried out for residual retroperitoneal tumors after cisplatin-based chemotherapy.

A case of clear cell adenocarcinoma arising from the urethral diverticulum: Utility of urinary cytology and immunohistochemistry.

Carcinomas rarely arise from the urethral diverticulum. In this report, we present a case of clear cell adenocarcinoma arising from the urethral diverticulum. A 42-year-old woman complained of bloody discharge and lower back pain.

Inflammatory pseudotumor of the retroperitoneum removed via a retroperitoneoscopic approach.

Background: Inflammatory pseudotumors were mostly encountered in the lung. Retroperitoneal inflammatory pseudotumors are relatively rare. Although laparoscopic surgery with a modified flank position is widely performed for retroperitoneal tumors, we placed the patient in the supine position to maintain the normal anatomical view of the retroperitoneal space.

Laparoscopic adrenalectomy: troublesome cases.

Among 143 cases of laparoscopic adrenalectomy carried out from 1993 to the present, 13 patients in whom the surgical manipulation presented problems were examined. Problems occurred due to the condition of the adrenal tumors themselves in six patients, whereas problems occurred due to the operative history in four patients. There were three patients with no operative history but with strong intraperitoneal adhesion.

How to use laparoscopic surgical instruments safely.

The development of laparoscopic surgery has been accompanied by a rapid increase in the number of laparoscopic surgical procedures carried out in the field of urology. In 2002 laparoscopic nephrectomy was approved for coverage under Japanese national health insurance, and in 2003 there were over 1000 registered cases in which this procedure was carried out. This suggests that laparoscopic nephrectomy, a procedure formerly conducted at only a few institutions, is now spreading to hospitals across Japan.

Incidence of local and port site recurrence of urologic cancer after laparoscopic surgery.

Objectives: To determine the incidence of dissemination and port site metastases in patients undergoing laparoscopic surgery for urologic cancer.

Methods: From June 1992 to August 2005, 459 laparoscopic procedures were performed, 304 of which were for cancer. These included 162 radical prostatectomies, 67 radical nephrectomies, 20 partial nephrectomies, 45 nephroureterectomies, 5 retroperitoneal lymph node dissections of testicular cancers after chemotherapy, 3 radical cystectomies, and 2 other procedures.

Posterior approach for retroperitoneal laparoscopic bilateral native nephrectomy in prone position: initial experience with four cases.

Focal segmental glomerulosclerosis (FSGS) is known to recur in some patients after renal transplantation. Recently, laparoscopic nephrectomy has been introduced as a minimally invasive surgery. We present our experience with our first four patients with FSGS who underwent simultaneous bilateral native nephrectomy in the prone position by means of retroperitoneal laparoscopy before renal transplantation.

Oncological outcome of laparoscopic prostatectomy.

Aim: Oncological outcomes including surgical margin status and biological progression-free survival (bPFS) were analyzed in patients who underwent laparoscopic prostatectomy (LRP) only.

Methods: A total of 136 patients who underwent LRP only without lymph node metastasis or perioperative supportive therapy between April 2000 and October 2005 were analyzed. All patients received > or =6 months postoperative follow-up.

Malignant pheochromocytoma with IVC thrombus.

A 61-year-old man presented with feeling of bloating, remarkable sweating, and body weight loss. We diagnosed right pheochromocytoma with inferior vena cava (IVC) thrombus by some plasma and urine catecholamine and their metabolites data and imaging findings. The patient underwent right adrenalectomy and IVC thrombectomy without use of cardiopulmonary bypass.

[Laparoscopic pyeloplasty for ureteropelvic junction obstruction].

Purpose: We performed laparoscopic pyeloplasty in 11 patients with ureteropelvic junction (UPJ) obstruction and evaluated the clinical outcomes of this surgery.

Materials And Methods: Between August 2001 and February 2004, 11 patients with UPJ obstruction underwent laparoscopic pyeloplasty in our institute. In all patients, symptoms were presented and UPJ obstruction was confirmed by radiographic examinations.

Hand-assisted laparoscopic radical nephrectomy using intraoperative ultrasonography for left renal cell carcinoma involving a level I renal vein tumor thrombus.

This report concerns two male patients, 65 (case 1) and 72 (case 2) years old, with a left renal tumor involving a level I renal vein tumor thrombus, who underwent hand-assisted laparoscopic radical nephrectomy using intraoperative ultrasonography. With the patient in the flank position, a midline supraumbilical hand port and two other ports were placed. Intraoperative ultrasonography identified the extent of the tumor thrombus.

Two cases of ganglioneuroma.

Although ganglioneuroma is a relatively rare tumor of the sympathetic nervous system, detection of this tumor has increased as imaging techniques such as computed tomography and ultrasonography have become prevalent. We report 2 cases of ganglioneuroma found incidentally. Both tumors were 40 to 60 mm in size.

Clinical outcomes of laparoscopic adrenalectomy according to tumor size.

Objectives: In order to evaluate the indication and usefulness of laparoscopic adrenalectomy, clinical outcomes of laparoscopic adrenalectomy for patients with adrenal tumors were examined. Whether tumor size affects surgical outcome was analysed, along with the long-term clinical outcome for these patients.

Patients And Methods: A total of 63 patients with adrenal tumor underwent laparoscopic adrenalectomy in our institute between 1999 and 2003.

Clinical study of six cases showing late relapse of germ cell tumors.

Late relapse of germ cell tumors has been considered rare. We report six patients treated at our institution with relapses of germ cell tumors more than 2 years after first successful management. Median time to late relapse for pure seminomas and non-seminomatous germ cell tumors was 30.