title: [Subacute lower back pain and acute kidney failure in a 47-year old man].
abstract: A 47-year-old man presented with subacute, low back pain and increased creatinine levels. A CT scan showed an extrinsic, bilateral compression of the ureters by a retroperitoneal mass with pronounced uptake of 18F-fluorodeoxyglucose in positron emission tomography. Histological findings were consistent with the diagnosis of retroperitoneal fibrosis. Urological decompression was performed. The initiated corticosteroids led to a rapid clinical improvement and regression of the retroperitoneal mass. A relapse occurred after tapering of corticosteroids with a prompt response to increase of the dosage.
authors.affiliation: Nephrologie und Dialysezentrum, Klinik für Innere Medizin, Spital Zollikerberg, Zollikerberg, Schweiz.
authors.forename: T
authors.initials: T
authors.lastname: Tritschler
authors.forename: J
authors.initials: J
authors.lastname: Bleisch
authors.forename: A
authors.initials: A
authors.lastname: Al Rifai
authors.forename: E
authors.initials: E
authors.lastname: Marques Maggio
authors.forename: S
authors.initials: S
authors.lastname: Müller
authors.forename: R
authors.initials: R
authors.lastname: Schorn
mesh_terms: D058186:Acute Kidney Injury / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control; D003131:Combined Modality Therapy; D019299:Decompression, Surgical / Q000379:methods; D005938:Glucocorticoids / Q000627:therapeutic use; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000150:complications* / Q000175:diagnosis / Q000628:therapy*; D016896:Treatment Outcome; D001748:Urinary Bladder Neck Obstruction / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy*
chemical_list: D005938:Glucocorticoids