Coexistence of Graves' Disease and Toxic Adenoma: a Rare Presentation of Marine-lenhart Syndrome.

Both Graves' disease and Toxic Nodules cause thyrotoxicosis, albeit by different mechanisms. Their coexistence is called Marine-Lenhart syndrome, the prevalence of which has been reported 2.7-4.1%. In many cases with Marine Lenhart syndrome Graves' disease is accompanied by multiple hyperfunctioning nodules, although it is accompanied by a solitary hyperfunctioning nodule in rare cases. We here in reported a rare presentation of Marine Lenhart syndrome and its treatment.