Sarcomatoid Renal Cell Carcinoma / 대한비뇨기과학회지

Cases of sarcomatoid renal cell carcinoma are very rare. It has been known that sarcomatoid renal cell carcinoma is an epithelial cell variant that has been metaplastically transformed with a very poor prognosis. Diagnosis of sarcomatoid renal cell carcinoma is performed by examining a nephrectomy specimen to see if epithelial and sarcomatoid components are variously mixed together. Therefore, the aim of this paper is to report five cases of sarcomatoid renal cell carcinoma.

Pelvic Cavernous Hemangioma / 대한비뇨기과학회지

The majority of hemangiomas are small, benign vascular tumors. They can regress spontaneously as a result of fibrosclerosis, suggesting a conservative approach whenever possible. They require little, if any, treatment and are easy to differentiate from malignant tumors clinically and radiologically, and there is no evidence that hemangiomas ever become malignant. We report a case of a 54-year old man with extravesical cavernous hemangioma who was diagnosed with a malignant tumor preoperatively.

The Pathological Characteristics of Localized Prostate Cancer, Managed with Radical Prostatectomy / 대한비뇨기과학회지

PURPOSE: Prostate cancer is known as the most common cancer in western men, and their incidences are increasing in oriental men, including Koreans. We made an effort to evaluate the pathological characteristics of this cancer in Koreans. MATERIALS AND METHODS: The medical records of 170 patients with prostate cancer, having undergone a radical retropubic prostatectomy between April 1990 and May 2001 were reviewed. The distributions of preoperative serum PSA levels, preoperative biopsy Gleason scores and clinical stages were evaluated. We analyzed pathological findings, such as the rates of organ confinement, extracapsular extension, seminal vesicle invasion and lymph node involvement. In cases with seminal vesicle invasion, tumor mapping, through microscopic examination of histological sections at multiple levels, were performed to determine the route of invasion. RESULTS: When the patients were stratified according to each preoperative parameter, the largest proportion were found to be in the T1c and T2a clinical stages (40.6%), had Gleason scores between 8 and 10 (34.1%) and serum PSA levels in the range of 4-10ng/ml (32.9%). There were 30.6% of patients with preoperative serum PSA levels greater than 20ng/ml. The rates of organ confinement, extracapsular extension, seminal vesicle invasion and lymph node involvement were 54.7, 17.7, 19.4 and 8.2%, respectively. 75.8% of the seminal vesicle invasions were revealed to be from direct extension of the tumor. CONCLUSIONS: The high incidence of seminal vesicle invasion in Korean prostate cancer patients might be due to the location of the tumors, the aggressiveness of the tumors or racial differences. Considering the reported incidence of seminal vesicle invasion in Japan was 32%, multicentric studies are required to elucidate the cause of the high incidence of seminal vesicle invasion in Asians.

High-flow Priapism in Child after Perineal Trauma / 대한비뇨기과학회지

Here we report a case of a pediatric priapism in a 6-year-old boy. He presented with a painless priapism for 7 days after a blunt perineal trauma. The blood gas analysis of the cavernosum indicated a high-flow priapism. An angiogram revealed and characterized the exact site of the arterio-cavernosal fistula and a superselective embolization was done using gelatin sponge pledgets. A complete detumescence was achieved two days after the embolization.