<\/span><\/h2>\nLinear IgA bullous disease affects adults of all ages, but is more common in old age. It's very weird. In some cases, it is associated with a medication.<\/p>\n
Linear childhood bullous IgA skin disease<\/span> It is also rare. It has been suggested that it may be more common in children in developing countries. It is more frequent in preschool children.<\/p>\n\n
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<\/span>What are the clinical features of linear IgA bullous disease?<\/span><\/h2>\nLinear IgA bullous disease is characterized by blisters on the skin and mucous membranes<\/span>. They tend to start at the extremities, but any area of the body can be affected. Blisters and ulcers<\/span> on the lips and inside the mouth it affects approximately 50% in people with linear IgA disease.<\/p>\nIn boys, linear IgA bullous disease usually occurs before puberty with a sudden onset of blisters in the genital region, which then affects the hands, feet, face, and extremities.<\/p>\n
Round or oval blisters filled with clear fluid may arise from normal-looking skin or from flat or raised red patches. Blisters may be small (vesicles<\/span>) or big (bullas<\/span>) Typically, the blisters are arranged in rings (cancel<\/span> injuries) and can form an objective shape. The tendency for new blisters to appear on a ring around an old one is called a bead chain sign<\/span>, and groups of small blisters can be described as a group of jewels. Secondary injuries include scabs, scratches, sores, and ulcers.<\/p>\nEye involvement can lead to irritation, dryness, sensitivity to light, blurred vision, corneal scarring, and even blindness.<\/p>\n
The intensity of itching is variable in linear IgA disease.<\/p>\n\n<\/span>Linear IgA disease<\/span><\/h5>\n<\/section>\n\n\n
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Granuloma annulare<\/p>\n
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Linear IgA<\/p>\n
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Linear IgA<\/p>\n
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Linear IgA<\/p>\n
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String of beads sign<\/p>\n
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Chronic bullous disease of childhood.<\/p>\n<\/p><\/div>\n<\/section>\n
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<\/span>What is the cause of linear IgA bullous disease?<\/span><\/h2>\nThe cause of linear IgA bullous disease is not fully understood. It is classified as an autoimmune skin disease. Blisters occur due to the development of a division between the epidermis and the dermis<\/span>where IgA autoantibodies<\/span> react to the components of the hemidesmosome<\/span> and basement membrane (BP180, BP230, and LAD285).<\/p>\nLinear IgA bullous disease usually arises spontaneously, but can be triggered by a infection<\/span> or medication.<\/p>\n<\/span>Associations of underlying diseases<\/span><\/h3>\nLinear IgA bullous dermatosis has been reported in patients with inflammatory<\/span> gastrointestinal disease. It is thought that autoantigens<\/span> they are exposed to the immune system in the diseased colon, and the autoantigens themselves target the skin. Surgery to remove the intestine can lead to the removal of the blistering disease of the skin.<\/p>\nLinear IgA bullous dermatosis has also been rarely associated with lymphoma<\/span>, hematological<\/span> conditions, rheumatic conditions and solid<\/span> tumors<\/p>\n<\/span>Drug-induced linear IgA bullous dermatosis.<\/span><\/h3>\nLinear IgA dermatosis bullosa has been reported to be caused by medications. The most frequently associated drug is vancomycin. Other medications associated with linear IgA bullous dermatosis are:<\/p>\n
\n- Diclofenac<\/li>\n
- Captopril<\/li>\n
- Trimethoprim + sulfamethoxazole<\/span><\/li>\n
- Amiodarone<\/li>\n
- Cyclosporine<\/li>\n
- Glibenclamide<\/li>\n
- Lithium<\/li>\n
- Penicillin<\/li>\n
- Cephamandol<\/li>\n
- Phenytoin<\/li>\n
- Somatostatin<\/li>\n
- Sodium hypochlorite (bleach)<\/li>\n<\/ul>\n
Drug-induced disease resolves with removal of the offending agent.<\/p>\n
<\/span>Linear IgA bullous disease presenting as toxic<\/span> epidermal<\/span> necrolysis<\/span><\/h3>\nToxic epidermal necrolysis (NET) is a serious disease. cutaneous<\/span> adverse reaction<\/span> to a drug that comes with extended<\/span> Painful loss of skin and blisters. Some cases have been described in which direct immunofluorescence has revealed characteristic linear IgA deposits.<\/p>\n\n<\/span>Worsening of linear IgA disease induced by TEN-type drugs *<\/span><\/h5>\n<\/section>\n\n\n
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Linear IgA<\/p>\n
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Linear IgA<\/p>\n
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Linear IgA<\/p>\n<\/p><\/div>\n<\/section>\n
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* The patient illustrated above developed a TEN-like eruption<\/span> when dapsone is prescribed, it is normally beneficial in linear IgA disease.<\/p>\n<\/span>What are the biopsy findings?<\/span><\/h2>\nLinear IgA bullous dermatosis is a subepidermal bullous disorder. This means that a skin biopsy reports blisters just below the epidermis. It is associated with inflammation<\/span> in which eosinophils<\/span> and neutrophils<\/span><\/span> are prominent<\/p>\nA special skin biopsy. antibody<\/span> staining, direct immunofluorescence, reveals the immunoglobulin<\/span> IgA along the basement membrane of the epidermis in a linear pattern. Sometimes these IgA antibodies can also be detected by a blood test (indirect immunofluorescence).<\/p>\nIt is sometimes difficult to distinguish clinically different forms of immunobular diseases and histologically<\/span>, and the antibody findings may overlap.<\/p>\n\n<\/span>Direct immunofluorescence in linear IgA bullous dermatosis<\/span><\/h5>\n<\/section>\n\n\n
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IgA linear deposition<\/p>\n
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No IgG deposition<\/p>\n<\/p><\/div>\n<\/section>\n
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<\/span>What is the treatment for linear IgA bullous dermatosis?<\/span><\/h2>\nMost patients with linear IgA bullous dermatosis improve or disappear with dapsone 50\u2013100 mg daily. Other medications that have been reported to help individual patients include:<\/p>\n