[RETROSPECTIVE ANALYSIS OF POSITIVE SURGICAL MARGIN AT RADICAL PROSTATECTOMY].

We retrospectively reviewed 182 patients who underwent radical prostatectomy in our hospital between April, 2009 to December, 2012, and who had not received any prior hormonal therapy. We also excluded the patients who couldn't followed up more than 6 months after surgery and pN1 patients. Positive surgical margins were observed in 65 cases.

One-month relative dose intensity of not less than 50% predicts favourable progression-free survival in sorafenib therapy for advanced renal cell carcinoma in Japanese patients.

Background: Sorafenib is a multikinase inhibitor used as a second-line treatment for metastatic renal cell carcinoma (mRCC). However, it is very difficult to estimate sorafenib dosage because it is difficult to maintain stable administration and dosage intervals due to several side-effects. We examined the correlation between relative dose intensity (RDI) and clinical outcome of sorafenib therapy in a multi-institutional study.

[An unusual case of cystic nephroma protruding into the renal pelvis].

Cystic nephroma is a relatively rare and benign renal lesion of uncertain etiology. Approximately 200 cases have been described, but only a few cases of cystic nephroma with prominent renal pelvis involvement have been reported. Here, we report an unusual case of cystic nephroma that protruded into the renal pelvis.

[A case of liposarcoma of spermatic cord with a hydrocele].

A 59-year-old man was referred to our hospital with the chief complaint of painless left scrotal swelling. He was diagnosed with left hydrocele testis and underwent puncture of hydrocele. Radical hydrocelectomy was performed because of its frequent recurrence in a short period.

[A case of retroperitoneal myxofibrosarcoma].

A 63-year-old man presented to our hospital suffering from dull pain in his right flank and general malaise.Abdominal computed tomography (CT) revealed a 21X14 cm retroperitoneal tumor adjacent to the right kidney. He underwent extirpation of the tumor,which weighed 2,900 g.

Chondroid syringoma of the scrotum.

A 70-year-old Japanese man complained of a nodular, non-tender scrotal mass, which had been gradually increasing in size over the last 10 years. Excisional biopsy of the scrotal specimen revealed chondroid syringoma, a very rare benign tumor, more likely to occur in the head and neck region. This is the eighth such case reported, and is an important type of scrotal tumor.

[Case report: collecting (Bellini) duct carcinoma during the follow-up for bladder cancer].

A 78-year-old man had undergone transurethral resection of bladder tumor (TUR-Bt) 6 times since he was diagnosed as having bladder cancer. Past histology was urothelial carcinoma, pTa, G1-G2. During the follow-up, recurrent bladder cancer was found.

[Experitoneal bladder perforation due to in-dwelling urethral catheter successfully treated by urethral drainage: a case report].

Perforation of the bladder related to long-term indwelling urethral catheter is a rare and serious complication. A 85-year-old man with an indwelling urethral catheter presented severe hematuria, abdominal pain with rebound tenderness and muscular tension over the suprapubic area after the exchange of the urethral catheter. Computed tomography and cystogram revealed experitoneal bladder perforation due to indwelling catheter.

[Case report: a case of localized amyloidosis of the ureter].

A 78-year-old man visited our hospital with a chief complaint ofmacrohematuria in January 2006. Ultrasonography and computed tomography showed left hydronephroureter due to the enhanced tumor which was 10 mm in diameter in the lower ureter. Urine cytology was Class II.

[Successful treatment of hemorrhagic cystitis after radiation therapy with intravesical instillation of aluminium hydroxide gel and magnesium hydroxide: report of a case].

A 77-year-old man was admitted to our hospital due to macrohematuria and bladder tamponade. Bladder hemorrhage caused by radiation therapy had not improved after bladder lavage, intravesical drip infusion, medication of hemostatics, and transurethral coagulation. Bladder hemorrhage had completely disappeared 7 days after the intravesical instillation of 50-100 ml aluminium hydroxide gel and magnesium hydroxide for an hour per day.

[Case of self mutilation of urethra in a Munchausen's syndrome patient].

A 33-year-old man presented with urethral bleeding and syncope. Urethroscopy revealed erosive lesion with bleeding at bulbar urethra. Magnetic resonance imaging, biopsy, and blood examination were performed, but the cause of urethral bleeding was not identified.

[Case of retroperitoneal paraganglioma].

Paragangliomas are rare neuroendocrine tumors that arise from hyperplastic paraganglionic cells and occur in or near the ganglia of the autonomic nervous system. Paragangliomas are classed as either functional or nonfunctional based on production of catecholamines. We report a case of retroperitoneal nonfunctional paraganglioma, which was successfully resected.

[Sarcomatoid carcinoma of the urinary bladder: report of a case].

A 77-year-old man was admitted to our hospital for a scheduled examination after transurethral resection of transitional cell carcinoma of urinary bladder. Tumor reccurence was found in the bladder by cystoscopic examination. Total cystectomy and unilateral cutaneous ureterostomy were performed.

[Recrudescence of prostate cancer with low serum level of PSA and high serum level of CEA and CA19-9: a case report].

We report a case of primary adenocarcinoma of the prostate producing carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9). A 64-year-old man referred to our hospital with dysbasia. Two years ago, he was diagnosed with prostate cancer at another hospital and received radiotherapy and endocrine therapy.

[Analysis of transrectal needle biopsy of the prostate: usefulness of systematic 12 core biopsy].

A total of 978 of transrectal prostate biopsies performed between January 1998 and December 2005 at Ikeda Municipal Hospital were reviewed to determine the usefulness of the systematic 12 core biopsy including the apex and transition zone (TZ). Prostate cancer was detected in 531 of the 978 cases (54.3%).

[A case of giant renal artery aneurysm].

A 72-year-old woman consulted our hospital for a cystic mass in the right kidney. Ultrasonography and drip infusion pyelography revealed a right renal cystic mass 10 cm in diameter and right hydronephrosis. Computed tomography (CT) and magnetic resonance imaging revealed a giant mass with partial calcification in the right renal hilus.

[Invasive bladder cancer recurrenced 5 years after complete response status by chemotherapy and radiotherapy: a case report].

A 72-year-old man had undergone trasucethral resection of bladder tumor (TUR-Bt) three times from 1990 to 1991 and he had been lost to follow with no recurrence from 1996, came to our hospital complaining of asymptomatic macrohematuria in May 1999. A bladder tumor existed around the right ureteral orifice with right hydronephrosis. MRI and TUR-Bt revealed that the cancer was transitional cell carcinoma (TCC) > small cell carcinoma, G3, pT3b.

[A case of renal angiomyolipoma with marked cystic degeneration and pseudoaneurysm].

A 59-year-old woman consulted our hospital for a left renal mass which she had been aware of for 4 years. The tumor was in the lower portion of the left kidney. It was a cystic tumor whose wall was enhanced on computed tomography and magnetic resonance imaging.