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January 1992

Follicular Thyroid Carcinoma Metastatic to the Iris: A Solitary Lesion Treated With Iridocyclectomy

Author Affiliations

Glasgow, Scotland

Arch Ophthalmol. 1992;110(1):19-20. doi:10.1001/archopht.1992.01080130021012

Metastatic spread of tumors to the iris is rare.1 Such lesions most commonly arise from a primary breast or lung neoplasm and are associated with widespread carcinomatosis and a short life expectancy.

We report a case of local excision of a solitary thyroid metastasis to the iris in a patient without any evidence of extraocular malignancy.

Report of a Case.  —A 38-year-old Asian woman in good health presented with mild dull pain in the right eye of 3 weeks' duration. The patient gave a medical history of partial thyroidectomy 7 years earlier that had been performed to explore a "cold nodule" found on iodine 123 scan. However, pathologic examination had demonstrated multinodular hyperplasia without any evidence of neoplasia.Slit-lamp examination revealed a spherical, pink, vascularized tumor in the superotemporal iris (Fig 1). Fluorescein angiography confirmed the highly vascular nature of the mass with leakage of dye into the anterior

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