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Foreign body in the bladder mimicking nephritis.

Benz MR, Stehr M, Kammer B, Glöckner-Pagel J, Höfele J, Eife R, Weber LT

Pediatric Nephrology, Dr. von Haunersches Kinderspital, Ludwig-Maximilians-Universität München, Lindwurmstrasse 4, 80337, München, Germany, Marcus.Benz@med.uni-muenchen.de.

Cases of foreign bodies in the bladder self-inserted via urethra are not rare in childhood. Urinary tract infection, dysuria, lower abdominal pain, or haematuria with and without pain are common symptoms. We report on a 11-year-old boy with accidentally detected microscopic haematuria, proteinuria and leukocyturia. Because of increasing proteinuria up to 2330 mg/g creatinine and elevated antistreptolysin titre glomerulonephritis was suspected. However, some echogenic material was detected in the bladder by ultrasound. X-ray of the pelvis showed a 30 cm long tube projecting onto the bladder. The boy then admitted having had inserted a plastic tube into the urethra two years ago. The foreign body was removed cystoscopically. Four weeks after cystoscopy erythrocyturia, leucoyturia and proteinuria had disappeared. We state that symptoms of a local inflammation caused by a foreign body in the bladder can imitate the symptoms of nephritis.

Published 5 February 2007 in Pediatr Nephrol, 22(3): 467-70.
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