Lymphoplasmacytic infiltration of multiple organs with immunoreactivity for IgG4: IgG4-related systemic disease.
We report three elderly men with high serum IgG4 concentrations and multiple lymphoplasmacytic inflammation of the salivary glands, lymph nodes, pancreas, and renal interstitium. The infiltrating plasma cells had strong immunoreactivity for IgG4, even in patients without pancreatic lesions. These cases show that IgG4 is associated not only with autoimmune pancreatitis, but also with other systemic lymphoplasmacytic disease.
Saeki
Takako
T
Department of Internal Medicine, Nagaoka Red Cross Hospital, Nagaoka.
Saito
Akihiko
A
Hiura
Tohru
T
Yamazaki
Hajime
H
Emura
Iwao
I
Ueno
Mitsuhiro
M
Miyamura
Syoji
S
Gejyo
Fumitake
F
D001327:Autoimmune Diseases / Q000175:diagnosis / Q000276:immunology / Q000473:pathology*; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D007668:Kidney / Q000473:pathology; D008198:Lymph Nodes / Q000473:pathology; D008214:Lymphocytes / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010179:Pancreas / Q000473:pathology; D050500:Pancreatitis, Chronic / Q000276:immunology / Q000473:pathology; D010950:Plasma Cells / Q000473:pathology*; D012469:Salivary Glands / Q000473:pathology
D007074:Immunoglobulin G