ANNALS OF CLINICAL AND ANALYTICAL MEDICINE, vol.11, no.2, pp.162-165, 2020 (ESCI)
Thiopurines are widely used for remission maintenance and recurrence prevention in Myasthenia Graves disease (MG). We report a case of a 78-year-old man with MG treated with azathioprine (AZA) for 3 years earlier and who developed an intraoral ulcerated lesion. The biopsy specimen revealed a lymphoma and after discontinuation of AZA therapy the ulcerated lesion showed complete regression at 8 weeks, and no subsequent treatment was required.