Three black patients with peripheral retinal sea fan neovascularization were found to have sarcoidosis. The periphlebitic process may be the cause of stasis, hypoxia, and a secondary vasoproliferative stimulus.
We noted the peculiar finding of a vessel passing through the neovascular tissue into the peripheral retina. This feature may help in the differential diagnosis.
Asdourian GK, Goldberg MF, Busse BJ. Peripheral Retinal Neovascularization in Sarcoidosis. Arch Ophthalmol. 1975;93(9):787-791. doi:10.1001/archopht.1975.01010020681004