Bear Paw Sign: Xanthogranulomatous Pyelonephritis

Xanthogranulomatous pyelonephritis is a rare form of chronic pyelonephritis in which the involved areas of the kidneys are destroyed and replaced by foam cells. It usually occurs in immunocompromised middle-aged females with ureteral obstruction or chronic urinary tract infection induced by the form...

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Published inJournal of radiology case reports Vol. 12; no. 11; pp. 18 - 24
Main Authors Garrido Abad, Pablo, Rodrí­guez-Cabello, Miguel Angel, Vera-Berón, Roberto, Platas-Sancho, Arturo
Format Journal Article
LanguageEnglish
Published United States EduRad 01.11.2018
Subjects
Adult
Anti-Bacterial Agents - therapeutic use
Ceftriaxone - therapeutic use
Combined Modality Therapy
Diagnosis, Differential
Female
Genitourinary Radiology
Humans
Magnetic Resonance Imaging
Nephrectomy
Pyelonephritis, Xanthogranulomatous - diagnostic imaging
Pyelonephritis, Xanthogranulomatous - therapy
Tomography, X-Ray Computed
Complication
Computed Tomography
Xantogranulomatous
Pyelonephritis
Urinary stone
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Summary:Xanthogranulomatous pyelonephritis is a rare form of chronic pyelonephritis in which the involved areas of the kidneys are destroyed and replaced by foam cells. It usually occurs in immunocompromised middle-aged females with ureteral obstruction or chronic urinary tract infection induced by the formation of renal stones. We herein report the case of a 44-year-old woman, with a history of left kidney staghorn calculi and recurrent urinary tract infections. Abdominal computed tomography showed the 'bear paw' sign, typical appearance of XGP and patient underwent a nephrectomy with uneventful post-operative course.
Bibliography:ObjectType-Case Study-2
SourceType-Scholarly Journals-1
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ISSN:1943-0922
1943-0922
DOI:10.3941/jrcr.v12i11.3415