Won Sik Ham

Testicular cancer (TCa) has a relatively rare incidence and mortality, but has not been thoroughly evaluated. We analyzed global variations and recent trends in TCa incidence and mortality.Age-standardized rates (ASRs) of TCa incidence and mortality were retrieved from the GLOBOCAN 2012 database. Temporal patterns were assessed using data obtained from the Cancer Incidence in Five Continents (volumes I-X) and World Health Organization Mortality databases. The incidence and mortality trends over

OBJECTIVES: The aim of this study was to compare the outcomes of robotic prostatectomy (RP) in patients with clinically localized or locally advanced prostate cancer (PC). PATIENTS AND METHODS: Between July 2005 and February 2008, we performed RP in 357 patients by using the da Vinci robot system and a transperitoneal approach. We defined locally advanced PC as cases with a clinical T-stage >/=T3a with any serum prostate-specific antigen (PSA) or Gleason score. Among the 321 men not treated with

PURPOSE: To evaluate the safety and efficacy of red ginseng extract powder (OKBT) for treating erectile dysfunction. MATERIALS AND METHODS: Sixty-nine adult patients with mild to moderate erectile dysfunction of various etiologies were randomized to receive placebo or red ginseng extract powder. The red ginseng extract powder used in the present study was named OKBT. The primary efficacy parameter was response to the International Index of Erectile Function (IIEF) erectile function domain at bas

PURPOSE: We evaluated the long-term outcome of simultaneous transurethral bladder tumor and prostate resection in patients with nonmuscle invasive bladder tumor and bladder outlet obstruction. MATERIALS AND METHODS: Between April 1997 and April 2006, 213 patients with nonmuscle invasive bladder tumor who had a minimum followup of 24 months were included in the study, including group 1-107 with transurethral resection of bladder tumor only and group 2-106 with transurethral bladder tumor and pros

Some early-stage clear cell renal cell carcinomas (ccRCCs) of ≤7 cm are associated with a poor clinical outcome. In this study, we investigated molecular biomarkers associated with aggressive clinical T1 stage ccRCCs of ≤7 cm, which were used to develop a risk prediction tool toward guiding the decision of treatment. Among 1069 nephrectomies performed for ccRCC of ≤7 cm conducted between January 2008 and December 2014, 177 cases with available formalin-fixed paraffin-embedded tissue were evaluat

The molecular characteristics of early-stage clear cell renal cell carcinomas (ccRCCs) measuring ≤7 cm associated with poor clinical outcomes remain poorly understood. Here, we sought to validate genes associated with ccRCC progression and identify candidate genes to predict ccRCC aggressiveness. From among 1069 nephrectomies performed on patients, RNA sequencing was performed for 12 ccRCC patients with aggressive characteristics and matched pairs of 12 ccRCC patients without aggressive characte

PURPOSE: We compared the efficacy and safety of multiple session 99% ethanol sclerotherapy to single session OK-432 sclerotherapy for the treatment of simple renal cysts. MATERIALS AND METHODS: Between September 2004 and November 2006, 41 patients (50 cysts, group 1) underwent sclerotherapy with 99% ethanol at least twice and 48 (61 cysts, group 2) underwent a single session of OK-432 sclerotherapy. Followup was performed with ultrasound or computerized tomography every 3 months for 1 year. Comp

PURPOSE: Androgen deprivation therapy is the primary treatment for advanced prostate cancer but many patients eventually experience progression to hormone refractory status. Understanding the molecular changes after androgen deprivation therapy would help evaluate the efficacy or failure of second line therapies. Therefore, we analyzed the expression of the tumor suppressor phosphatase and tensin homologue deleted on chromosome 10 (PTEN), the human epidermal receptor-2 and neuroendocrine differe

OBJECTIVES: To compare oncological outcomes of partial nephrectomy (PN) and radical nephrectomy (RN) for renal tumours of ≤7 cm in which preoperative imaging reveals potential renal sinus fat invasion (cT3a), as RN is preferred for these tumours due to concerns about high tumour stage. PATIENTS AND METHODS: Among 1137 nephrectomies performed for renal tumours of ≤7 cm from January 2005 to August 2012, 401 solitary cT3a renal cell carcinomas (RCCs) without metastases were analysed. Classification