title: [Xanthogranulomatous pyelonephritis presenting a subcutaneous mass in the lower abdomen: a case report].
abstract: A 72-year-old female presented with the complaint of left lower abdominal swelling in May, 2005. Laboratory analysis revealed elevated white blood cell counts and C-reactive protein. Abdominal computed tomography showed left ureteral calculi, left hydronephrosis and a mass extending through the perinephric space, psoas major muscle into the left flank and lower abdomen. Echo-guided needle mass biopsy was performed. Histopathological findings revealed xanthogranulomatous changes. Under the diagnosis of diffuse xanthogranulomatous pyelonephritis extended into psoas muscle and subcutaneous tissue, antibiotic therapy was given for 5 months. After reduction of subcutaneous mass, left nephroureterectomy was performed. Histopathological findings revealed xanthogranulomatous pyelonephritis and ureteritis. Postoperative course was uneventful without any relapse of inflammation.
authors.affiliation: The Department of Urology, Kyoto University Graduate School of Medicine.
authors.forename: Harutake
authors.initials: H
authors.lastname: Sawazaki
authors.forename: Takehiko
authors.initials: T
authors.lastname: Segawa
authors.forename: Kenji
authors.initials: K
authors.lastname: Yoshida
authors.forename: Takashi
authors.initials: T
authors.lastname: Kawahara
authors.forename: Takamitsu
authors.initials: T
authors.lastname: Inoue
authors.forename: Takeshi
authors.initials: T
authors.lastname: Soda
authors.forename: Tomomi
authors.initials: T
authors.lastname: Kanba
authors.forename: Koji
authors.initials: K
authors.lastname: Yoshimura
authors.forename: Takeshi
authors.initials: T
authors.lastname: Takahashi
authors.forename: Eijiro
authors.initials: E
authors.lastname: Nakamura
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nishiyama
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Ito
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kamoto
authors.forename: Osamu
authors.initials: O
authors.lastname: Ogawa
mesh_terms: D000005:Abdomen; D000368:Aged; D005260:Female; D006801:Humans; D011705:Pyelonephritis, Xanthogranulomatous / Q000175:diagnosis* / Q000473:pathology