Immunohistological development of the Kveim reaction.
A follow-up of immunohistological events of Kveim reactions was made by taking biopsies from Kveim test sites at various intervals. Immunoglobulins were present in one half of the specimens taken at 2-7 days, but not earlier. 2-week-old reactions showed immunoglobulins in 50% of the cases and older reactions in 79%. Out of 52 specimens examined with specific conjugates, IgM was demonstrated in 42, IgG in one, and IgA in one reaction. Complement (C3) was seen in 83% out of 47 specimens examined. Complement and immunoglobulins were found in vessel walls but not elsewhere in the tissues.
D000328:Adult; D003176:Complement C3 / Q000032:analysis; D003165:Complement System Proteins / Q000032:analysis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis; D007731:Kveim Test; D008297:Male; D008875:Middle Aged; D012507:Sarcoidosis / Q000175:diagnosis* / Q000276:immunology; D012882:Skin Tests
D003176:Complement C3; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins; D003165:Complement System Proteins