Abstract
ABSTRACT: Separate case reports have described linear Immunoglobulin A (IgA) bullous dermatosis with histology mimicking oral lichen planus and ocular involvement with resultant blindness. Here, we describe a patient with known ocular cicatrizing disease but was unaware of an evolving rash of the oral mucosa. Subsequent biopsies were procured to investigate whether linear IgA dermatosis exhibited lichenoid changes mimicking lichen planus or if the patient had concomitant linear IgA dermatosis and lichen planus. Conclusively, both entities may cause scarring, and for the purpose of avoiding diagnostic confusion, we have categorically appropriated both under mucous membrane pemphigoid.
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