Figure 4From: Clinical and histological characterization of oral pemphigus lesions in patients with skin diseases: a cross sectional study from Sudan Immunohistochemistry staining used to detect C3 in formalin-fixed, paraffin-embedded oral tissue biopsy from patients with pemphigus vulgaris. C3 (brown colour) is seen in the intercellular junction of keratinocytes reliable with the location of desmoglein 3 (scale = 50 μm).Back to article page