Publications by authors named "Fumihiko Soma"

Purpose: Renal cancer surgery is frequently performed in small regional hospitals in Japan. This study evaluated the outcomes of renal cancer surgery, comparing results from the pre-robotic surgery era with those obtained with robotic surgery.

Methods: This prospective cohort study was conducted on patients who underwent renal cancer surgery between 2008 and 2013 at 14 hospitals, comprising 13 regional hospitals and a university hospital, registered in the Tohoku Urological Evidence-Based Medicine Study Group.

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Objective: The rate of intravesical recurrence after radical nephroureterectomy for upper urinary tract urothelial carcinoma is high. Seeding upper urinary tract urothelial carcinoma cells onto the damaged bladder wall is considered to be one of the causes of intravesical recurrence after radical nephroureterectomy. We evaluated the utility of early ureteral ligation in preventing the intravesical recurrence.

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Objectives: To characterize the site and clinical implications of intravesical recurrence after radical nephroureterectomy for upper urinary tract urothelial carcinoma.

Methods: Patients who underwent radical nephroureterectomy for upper urinary tract urothelial carcinoma between 2000 and 2011 at 12 institutions participating in the Tohoku Urological Evidence-Based Medicine Study Group were included in the present study. Those who underwent prior or simultaneous radical cystectomy were excluded.

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A 44-year-old man discovered a swollen right testis more than 4 years earlier. He was brought to our hospital because of abdominal pain and vomiting. Enhanced computed tomography (CT) showed a swollen right testis, lung nodules, and swollen retroperitoneal and mediastinal lymph nodes.

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A 55 year-old man complained dysuria and visited to our hospital. Physical examination showed firm large mass occupying whole abdomen. Computed tomography (CT) demonstrated a huge retroperitoneal tumor which compressed intestine, liver, kidney, and urinary bladder.

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Papillary adenocarcinoma resembling ductal carcinoma and arising in the peripheral zone is extremely rare. We report a case of prostatic papillary adenocarcinoma with ductal features. The patient was a 68-year-old man who initially presented with dysuria and sensation of residual urine after voiding.

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Purpose: We evaluated retrospectively health-related quality of life (HRQOL) after radical prostatectomy (RP) in Japanese men with localized prostate cancer.

Methods: The study was based on self-reported HRQOL of 280 patients. Patients were divided into seven groups: time 0 (T0), baseline before operation; T1, 1-3 months after RP; T2, 4-6 months after RP; T3, 7-12 months after RP; T4, 13-24 months after RP; T5, 25-36 months after RP; and T6, more than 36 months after RP.

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Risk factors of urethral recurrence after neobladder in bladder cancer patients were studied. Between 1977 and 2001, 73 patients (male 58, female 15) underwent neobladder as a treatment for bladder cancer. The observation time after cystectomy ranged from 2 to 254 months (median 60.

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