[Osseous choristoma of the choroid]

Two patients developed bone choristoma of the choroid, one case being unilateral and the other bilateral. In both cases the clinical diagnosis was confirmed by B scan ultrasonography and computerized axial tomography. Infrared angiography with indocyanin green was carried out on both eyes of the patient with bilateral lesions. The angiogram showed multiple small vessels within the tumor. However, the angiogram with indocyanin green was quite different from the angiogram observed in cavernous choroidal hemangioma. One patient had an associated cleft palate, this being supportive evidence of the hypothesis of a developmental tumor of the choroid.