Pemphigoid nodularis
Encyclopedia
Pemphigoid nodularis is a cutaneous condition that is a variant of bullous pemphigoid
Bullous pemphigoid
Bullous pemphigoid, also referred to as BP, is an acute or chronic autoimmune skin disease, involving the formation of blisters, more appropriately known as bullae, at the space between the skin layers epidermis and dermis.-Signs and symptoms:...

 that has skin lesions mimicking prurigo nodularis
Prurigo nodularis
Prurigo nodularis is a skin disease characterised by pruritic nodules which usually appear on the arms or legs. Patients often present with multiple excoriated lesions caused by scratching...

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The antibody involved is IgG.
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