Ring-Shaped Leiomyoma of the Ciliary Body.

PURPOSE: Ciliary body mesectodermal leiomyoma is a rare, benign smooth muscle tumor that typically presents in women in the second to fourth decade of life. The diagnosis is typically based on clinical color, funduscopic appearance, transillumination properties, and B-scan ultrasonography.

METHODS

We present a patient with a 360° ciliary body mass with transillumination and ultrasonographic properties consistent with a ring melanoma.

RESULTS

This case emphasizes the difficulty in differentiating the benign leiomyoma from similar appearing malignant tumors such as melanoma.

CONCLUSION

The eye was enucleated and the diagnosis was ring-shaped leiomyoma.