Urinary tract lymphoma.
Urinary tract involvement by non-Hodgkin's lymphoma is uncommon and whilst extranodal disease may be the first manifestation of NHL in 15% of patients, the primary site of origin of NHL in the urinary tract is very rare. At the time of diagnosis, apparently primary urogenital lymphoma is often widely disseminated, with a correspondingly poor prognosis.
D000328:Adult; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology; D008223:Lymphoma / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011471:Prostatic Neoplasms / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000473:pathology; D014571:Urologic Neoplasms / Q000473:pathology*