Two cases of granular C3 dermatosis with intraepidermal neutrophilic and eosinophilic infiltration possibly induced by anti-hypertensive drugs.

with mucosal involvement, prognosis or duration of LABD. Our patient showed a complete response with dapsone, in keeping with the diagnosis of LABD. LABD cases, including those with IgG, IgM and C3 reactivity, responded rapidly to dapsone or sulfonamides. In summary, we report a rare adult case of LABD demonstrating typical clinical findings, with IgA, IgG and IgM reactivity, who responded rapidly to dapsone. We highlight the importance of LABD as a differential diagnosis in blistering dermatoses, even with the concomitant presence of IgG and IgM reactivity.