Oral paraneoplastic pemphigus and pharyngeal squamous cell carcinoma: a rare case report and review of literature

Paraneoplastic pemphigus (PNP) is an autoimmune vesiculo-bullous disease of skin and mucous membrane associated with benign and malignant neoplasm. Most common malignancies associated with PNP are hematologic and lymphomatoid. Association of oral PNP with squamous cell carcinoma of the pharynx is very scarce, very few cases are reported, and also the cases of PNP are usually refractory to the treatment mainly those associated with hematologic. Here we reported a case of oral paraneoplastic pemphigus with squamous cell carcinoma of the pharynx that resolved on its own after completion of treatment of pharyngeal squamous cell carcinoma.