title: Acute lumbago and sciatica as first symptoms of focal xanthogranulomatous pyelonephritis.
abstract: Xanthogranulomatous pyelonephritis (XGP) is a rare inflammatory disease of the kidney, presenting in a diffuse or focal form. The preoperative diagnosis of XGP is made only in 10% of the cases because neither the clinical nor the radiological presentation are specific and could be confused with renal tumors, thus deserving the name of 'great imitator'. We report a case of focal XGP in a middle-aged man presenting with acute lumbago and sciatica, an unusual clinical presentation.
authors.affiliation: Department of Urology, University of Tor Vergata, Rome, Italy. germe@tin.it
authors.forename: Stefano
authors.initials: S
authors.lastname: Germani
authors.forename: Roberto
authors.initials: R
authors.lastname: Miano
authors.forename: Flavio
authors.initials: F
authors.lastname: Forte
authors.forename: Enrico
authors.initials: E
authors.lastname: Finazzi Agrò
authors.forename: Guido
authors.initials: G
authors.lastname: Virgili
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Vespasiani
mesh_terms: D000208:Acute Disease; D001707:Biopsy, Needle; D005500:Follow-Up Studies; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods; D011705:Pyelonephritis, Xanthogranulomatous / Q000150:complications* / Q000175:diagnosis* / Q000601:surgery; D012585:Sciatica / Q000175:diagnosis / Q000209:etiology*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D018608:Ultrasonography, Doppler