LONG-TERM OBSERVATION OF MULTIFOCAL METASTATIC INTRAOCULAR CARCINOID WITH ACQUIRED IRIS HETEROCHROMIA

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Abstract

Background/Purpose:

To report a unique case of a pulmonary carcinoid tumor unilaterally metastatic to the iris and ciliary body and bilaterally to the choroid that was conservatively followed.

Methods:

A 46-year-old woman presented with bilateral choroidal lesions and a left iris tumor. Ultrasound biomicroscopy disclosed a ciliary body component. A diagnosis of metastatic carcinoid tumor was made based on the clinical features. Rather than an excision, photodynamic therapy, or radiation treatment, as has been reported in all previous cases of carcinoid tumor metastatic to the iris, the patient was observed.

Results:

Excellent vision was maintained for 8 years. The iris tumor gradually enlarged, but the choroidal lesions remained unchanged. The iris with the carcinoid tumor gradually acquired a brown pigmentation; this is the first reported case of acquired iris heterochromia in the setting of carcinoid tumor.

Conclusion:

We conclude, in cases of metastatic carcinoid in which visual acuity is excellent and the patient is asymptomatic, that observation of the ocular lesions is an acceptable course of action. The iris heterochromia is believed to have been caused by secretory factors produced by the tumor.

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