Fig. 3From: A brief review of pemphigus vulgarisPV direct immunofluorescence. IgG deposits intercellularly, along with intraepidermal acantholysis. The IgG deposition is represented by the hyperintense, brighter color distributed in a net-like or reticular pattern in between cells. The dark spaces nearby represent the fluid buildup that ensues as a result of loss of intercellular connection because of the IgG deposition. Courtesy of Wikipedia user: EmmanuelmBack to article page