Introduction: Paraneoplastic pemphigus is an autoimmune bullous disease described by precise clinical, histological and immunological features presented by Anhalt in 1990. Prognosis is very severe and depends on the associated neoplasia and the gravity of the mucosal damage.
Case report: Paraneoplastic pemphigus was diagnosed in a 62-year-old man with chronic lymphoid leukemia. The course was favorable up to one-year follow-up after general corticosteroid therapy.
Discussion: This case illustrates that paraneoplastic pemphigus can be controlled by general corticosteroids and would suggest the severe prognosis may be improved.