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IgG4-related disease (IgG4-RD), formerly known as IgG4-related systemic disease, is a chronic inflammatory condition characterized by tissue infiltration with lymphocytes and IgG4-secreting plasma cells, various degrees of fibrosis (scarring) and a usually prompt response to oral steroids.
However, surgery is not a good treatment for this condition as AIP responds well to immunosuppressive treatment. There are two categories of AIP: Type 1 and Type 2, each with distinct clinical profiles. Type 1 AIP is now regarded as a manifestation of IgG4-related disease, [2] and those affected have tended to be older and to have a high ...
Obexelimab is an experimental drug developed to treat IgG4-related disease and lupus. It works as a "bifunctional, non-cytolytic, humanised monoclonal antibody that binds CD19 and Fc gamma receptor IIb to inhibit B cells, plasmablasts, and CD19-expressing plasma cells." [1] [2]
The diagnosis of IgG4-related prostatitis could be made from histological examination if prostate biopsy or surgery has been performed. [6] The hallmark histopathological features of established IgG4-related disease are storiform fibrosis, a dense lymphoplasmacytic (lymphocytes and plasma cells) infiltrate rich in IgG4-positive plasma cells, and obliterative phlebitis.
Pages in category "IgG4-related disease" The following 25 pages are in this category, out of 25 total. This list may not reflect recent changes. ...
IgG4-related autoimmune diseases are characterized by excessive fibrosis. In case of Riedel's thyroiditis, fibrosis extends beyond the capsule and involves contiguous neck structures, clinically simulating thyroid carcinoma. There is a rapid thyroid enlargement. Compression of trachea, dysphagia are probable outcomes.
Existing treatment [ edit ] Standard, and most effective, therapy to date is glandular sialoadenectomy, which is associated with fairly low operative morbidity; however, in recent times, the administration of steroid (which can shrink the inflammatory lesion and is known to reduce serum IgG4 values) has been considered favorably, [ 16 ] [ 17 ...
IgG deficiency is a form of dysgammaglobulinemia where the proportional levels of the IgG isotype are reduced relative to other immunoglobulin isotypes.. IgG deficiency is often found in children as transient hypogammaglobulinemia of infancy, which may occur with or without additional decreases in IgA or IgM.