Retrovesical desmoplastic small round cell tumor in a patient with urinary frequency.
A 21-year-old man with urological symptoms was found to have a large abdominal tumor in the retrovesical space between the bladder and the rectosigmoid colon. Radiologic findings revealed little evidence confirming the diagnosis. A transrectal biopsy failed to disclose the histopathologic origin of the tumor. An exploratory laparotomy with a complete surgical resection was impossible, so a wedge biopsy was performed. Combined histologic and immunohistochemical findings revealed the features of desmoplastic small round cell tumor (DSRCT). Despite subsequent multi-agent chemotherapy, the patient died as a result of the growing tumor and liver metastasis. There have been only two prior reports of this neoplasm in the urological literature.
Murosaki
N
N
Department of Urology, Osaka University Medical School, Osaka, Japan.
Matsumiya
K
K
Kokado
Y
Y
Yoshioka
T
T
Yasunaga
Y
Y
Aozasa
K
K
Okuyama
A
A
D000008:Abdominal Neoplasms / Q000150:complications / Q000473:pathology*; D000328:Adult; D006801:Humans; D008297:Male; D001743:Urinary Bladder; D014555:Urination Disorders / Q000209:etiology