Flaccid bullae lesions with oral mucosal lesions. The finding in immunoflourescence is –
Fish net IgG in epidermis
Linear IgG in DEJ
Granular IgA in dermal papillae
Linear IgA in reticular dermis
Flaccid bullae with involvement of oral mucosa suggest the diagnosis of pemphigus vulgaris.
In pamphigus, there is intercellular deposition of IgG in fish-net pattern.