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The bullae are formed by an immune reaction, initiated by the formation of IgG [citation needed] autoantibodies targeting dystonin, also called bullous pemphigoid antigen 1, [6] and/or type XVII collagen, also called bullous pemphigoid antigen 2, [7] which is a component of hemidesmosomes. A different form of dystonin is associated with ...
Mucous membrane pemphigoid is a rare chronic autoimmune subepithelial blistering disease characterized by erosive lesions of the mucous membranes and skin. [3] It is one of the pemphigoid diseases that can result in scarring.
Pemphigoid is a group of rare autoimmune blistering diseases of the skin and mucous membranes.As its name indicates, pemphigoid is similar in general appearance to pemphigus, [1] however unlike pemphigus, pemphigoid does not feature acantholysis, a loss of connections between skin cells.
The number of target antigens varies on a case by case basis. The variability is likely what accounts for the different presentations of PNP. Through immunoprecipitation, target antigens have been found to include desmoglein-3, desmoglein-1, envoplakin, periplakin, desmoplakin 1, desmoplakin 2, and bullous pemphigoid antigen I. [citation needed]
Bullous pemphigoid: Skin Anti-BP180, Anti-BP230 Confirmed 6-30 per 100,000 (mostly older adults) [7] Cicatricial pemphigoid: Mucous membranes, sometimes skin Anti-BP180, Anti-BP230 Confirmed Rare [8] Dermatitis herpetiformis: Skin Anti-tissue transglutaminase: Confirmed 10 per 100,000 [9] Dermatomyositis: Skin and muscles: Anti-Jo1, Anti-Mi2 ...
Bites and stings as well as other conditions (e.g. drug reactions, urticarial reactions, and early bullous pemphigoid) can cause microscopic changes such as a wedge-shaped superficial dermal perivascular infiltrate consisting of abundant lymphocytes and scattered eosinophils, as shown in the adjacent figure: [12]
Cicatricial pemphigoid [1] or less commonly bullous pemphigoid [1] Pemphigus vulgaris [1] Linear immunoglobulin A disease [1] Dermatitis herpetiformis [1] Lupus erythematosus [1] Chronic ulcerative stomatitis [1] Chronic bacterial, fungal, and viral infections [1] Reactions to medications, mouthwashes, and chewing gum [1] Rare causes include ...
A vesiculobullous disease is a type of mucocutaneous disease characterized by vesicles and bullae (i.e. blisters).Both vesicles and bullae are fluid-filled lesions, and they are distinguished by size (vesicles being less than 5–10 mm and bulla being larger than 5–10 mm, depending upon which definition is used).