Esophageal Pemphigus Vulgaris: A Rare Etiology of Upper Gastrointestinal Hemorrhage.

Pemphigus vulgaris (PV) is an autoimmune blistering disorder of the skin and mucosal surfaces characterized by acantholysis (loss of adhesion between epidermal cells). Esophageal involvement of PV is an underdiagnosed entity as routine diagnostic endoscopy is not recommended in asymptomatic patients. Dysphagia and odynophagia are common presenting symptoms; however, upper gastrointestinal bleeding (UGIB) associated with esophageal involvement of PV without a history of mucosal blistering is extremely uncommon. We present a case of esophageal involvement of PV associated with active UGIB that was diagnosed on endoscopic evaluation. This case illustrated the importance of early endoscopy to identify the esophageal involvement of PV especially in patients with preexisting disease who present with gastrointestinal symptoms such as dysphagia, odynophagia, and hematemesis. Early recognition of esophageal involvement of PV and initiation of corticosteroid and/or immunosuppressant therapy may improve the outcome of the disease.