Granular deposits of IgA is seen in:: (A) Bullous pemphigoid, (B) Linear IgA bullous disorder, (C) Dermatitis Herpetiformis, (D) Hailey-Hailey disease
Answer is C. Bullous pemphigoid : Linear deposition of IgA and IgG at DEJ
Linear IgA bullous disorder : Linear deposition of IgA at DEJ
Dermatitis herpetiformis : Focal granular IgA deposits at papilary tips.
Hailey-Hailey disease : DIF : negative