Diagnostic techniques: * antibodies (IgG) precipitate complement (C3) in the lamina lucida of the basement<unk> . * Circulating auto-antibodies to BP-1 antigen (located in hemidesmosome). 50% have BP-2. * Positive Nikolsky sign. * IgG, C3 deposition at BM creating smooth line in immunofluorescent analysis.
Mucous membrane pemphigoid
IgA pemphigus
Vesicular pemphigoid
Bullous pemphigoid
Paraneoplastic pemphigus
Vulvar childhood pemphigoid
Giant cell lichenoid dermatitis
Pemphigoid nodularis