Unilateral Graves' Orbitopathy in a Patient with Marine-Lenhart Syndrome: A case report.

Thyroid eye disease (TED) is the most common symptoms of Graves' disease. This condition commonly manifests bilaterally and symmetrically. The most prominent symptoms are lid retraction, exophthalmos and diplopia. Rarely, individuals with Graves' disease show asymmetrical or unilateral eye symptoms. Marine-Lenhart syndrome is a variant of Graves' disease with occasional hyperactive nodules. A 36-year-old male patient presented to the endocrinology outpatient department at a tertiary care hospital in Muscat, Oman, in 2022 with unilateral eye proptosis and was subsequently found to have Graves' disease. This case presents a rare Graves' disease variant with unilateral goiter and orbitopathy.