title: IgG4-related Disease: A Mass Lesion in the Intrarenal Sinus near the Renal Pelvis.
abstract: A 52-year-old Japanese woman was admitted to our hospital with the renal pelvic mass lesion detected on a health screening examination. The surgical specimen contained a mass exhibiting the histological features of immunoglobulin (Ig)G4-related disease, including lymphoplasmacytic infiltration and sclerosis with numerous IgG4-producing plasma cells. Postoperatively, an elevation of the serum IgG4 level was confirmed at 403 mg/dL; however, there was no evidence of tubulointerstitial nephritis or glomerulopathy, including membranous nephropathy, and the urothelium of the renal pelvis was intact without inflammation. We herein report this case in which IgG4-related disease of the renal pelvic region presented with a mass lesion in the intrarenal sinus near the renal pelvis, not 'pyelitis' (as described by Stone).
authors.affiliation: Nephrology Center, Toranomon Hospital, Japan.
authors.forename: Jun-Ichi
authors.initials: J
authors.lastname: Inenaga
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Ueno
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kawada
authors.forename: Aya
authors.initials: A
authors.lastname: Imafuku
authors.forename: Koki
authors.initials: K
authors.lastname: Mise
authors.forename: Keiichi
authors.initials: K
authors.lastname: Sumida
authors.forename: Rikako
authors.initials: R
authors.lastname: Hiramatsu
authors.forename: Eiko
authors.initials: E
authors.lastname: Hasegawa
authors.forename: Noriko
authors.initials: N
authors.lastname: Hayami
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Suwabe
authors.forename: Junichi
authors.initials: J
authors.lastname: Hoshino
authors.forename: Naoki
authors.initials: N
authors.lastname: Sawa
authors.forename: Kenmei
authors.initials: K
authors.lastname: Takaichi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Fujii
authors.forename: Kenichi
authors.initials: K
authors.lastname: Ohashi
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Okaneya
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Ubara
mesh_terms: D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D007564:Japan; D007674:Kidney Diseases / Q000276:immunology* / Q000473:pathology*; D007682:Kidney Pelvis / Q000473:pathology*; D008875:Middle Aged; D012598:Sclerosis
chemical_list: D007074:Immunoglobulin G