Fig. 1
From: An unusual case of linear IgA disease affecting only the oral gingiva: a case report
Erythema and vesiculobullous lesions were observed on the buccal side of the gingiva (indicated by the white arrow), while a white spot was present in front of the labial gingiva of the mandible (indicated by the black arrow) (a). Histological examination of gingival tissue with a bullous lesion revealed a subepithelial split with mixed inflammatory infiltration (hematoxylin and eosin, × 40) (b). DIF examination demonstrated a linear deposition of IgA (c) and C3 (d) along the basement membrane. An image of the gingiva at the 1-year follow-up is shown (e)