Purpose: To report a mesectodermal leiomyoma of the posterior choroid.
Design: Observational case report.
Methods: A 23-year-old man was referred to us because of a progressive blurred vision in his left eye. Ophthalmologic examination revealed the presence of a 12 x 10 x 7.2-mm amelanotic choroidal mass in his left posterior pole. Fluorescein angiography, A-scan ultrasonography, and B-scan echography findings were suggestive for a diagnosis of choroidal amelanotic melanoma. These clinical features prompted us to enucleate the left eye.
Results: Histopathological and immunohistochemistry examinations established a definitive diagnosis of mesectodermal leiomyoma of the posterior choroid.
Conclusion: This case represents the first report describing the occurrence of an intraocular mesectodermal leiomyoma that may exclusively involve the posterior choroid.