Biomedical subjects
Publications and source records attributed to Nobuo Oyama.
We report two cases of acute urinary retention in women with an impacted pelvic mass. In both cases, all urinary symptoms resolved completely after the surgical removal of the mass.
Various toxicities have been observed during the treatment of advanced renal cell carcinoma with interferon-alpha (IFN-alpha) and/or interleukin-2 (IL-2). We report a case of severe anemia, which responded well to steroid therapy, in a patient receiving IL-2 plus IFN-alpha for metastatic renal cell carcinoma.
A 48-year-old man, who previously had normal erectile function, visited our hospital complaining of a painless erection that had persisted for 6 days. He had suffered perineal trauma in a traffic accident 9 days earlier. A diagnosis of post-traumatic high-flow priapism was suggested from the findings on penile blood gas analysis. Selective internal pudendal arteriography showed an arterial blush along the bilateral cavernous arteries. Subsequently, embolization of a cavernous fistula was performed with an autologous clot. However, the embolus was removed within a minute, so the procedure was repeated with Gelfoam. This patient had normal erectile function after 11 months, with no recurrence of priapism.
A 27-year-old man presented to our hospital complaining of multiple mild injuries sustained in an attack of violence at the workplace. He had received chemical burns to the penis induced by hydrochloric acid and had developed severe phimosis. He complained of pain on erection and ballooning during urination. The foreskin was partially resected with foreskin grafting for the stricture. The postoperative outcome was favorable and his symptoms were relieved.
A clinical statistics survey of the operations was performed at the Department of Urology, Nissei Hospital during a 20-year period from 1982 to 2001. The total number of operations was 3,164, and the number of extracorporeal shock wave lithotripsy procedures was 143. Operations for urogenital malignancies urolithiasis and prostatic hyperplasia numbered 893 (28.2%), 328 (10.4%), and 767 (24.2%), respectively. The total number of operations has been decreasing owing to the development of new diagnostic and therapeutic modalities.