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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.
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.
All patients with IgG deficiency require extensive diagnostic evaluation before the patient is diagnosed with a clinically significant IgG subclass deficiency. Depending on a clinical presentation, complete blood count , test for total serum immunoglobulins (IgG, IgA, IgM and subclass levels of IgG) and other tests are performed.
The water-accessible surface area of an IgG antibody. Immunoglobulin G (IgG) is a type of antibody.Representing approximately 75% of serum antibodies in humans, IgG is the most common type of antibody found in blood circulation. [1]
Dulaglutide, sold under the brand name Trulicity among others, [8] is a medication used for the treatment of type 2 diabetes in combination with diet and exercise. [9] [10] It is also approved in the United States for the reduction of major adverse cardiovascular events in adults with type 2 diabetes who have established cardiovascular disease or multiple cardiovascular risk factors.
IgG4-related ophthalmic disease (IgG4-ROD) is the recommended term to describe orbital (eye socket) manifestations of the systemic condition IgG4-related disease, [2] which is characterised by infiltration of lymphocytes and plasma cells and subsequent fibrosis in involved structures. It can involve one or more of the orbital structures.
Although a clear understanding of the various skin lesions in IgG4-related disease is a work in progress, skin lesions have been classified into subtypes based on documented cases: [2] Angiolymphoid hyperplasia with eosinophilia (or lesions that mimic it) [3] and cutaneous pseudolymphoma; Cutaneous plasmacytosis [Note 1]
Hyperglycemia or hyperglycaemia is a condition where unusually high amount of glucose is present in blood. It is defined as blood glucose level exceeding 6.9 mmol/L (125 mg/dL) after fasting for 8 hours and 10 mmol/L (180 mg/dL) 2 hours after eating. [1] [2]