Marine-Lenhart syndrome, also known as nodular Graves disease, is the coincidence of Graves disease with TSH-sensitive functioning nodules. Thyroid scintigraphy shows the typical finding of diffusely increased activity with a decreased background, but with one or more cold nodules (suppressed by TSH).
References
Intenzo CM, dePapp AE, Jabbour S, Miller JL, Kim SM, Capuzzi DM. Scintigraphic manifestations of thyrotoxicosis. Radiographics. 2003 Jul-Aug;23(4):857-69.
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