A 30-year-old female presented with macular edema and discoid exudation at the posterior pole. Diffuse vascular sheathing was observed at the peripheral retina. Fluorescein angiography revealed multiple microaneurysms at the posterior pole and leakage from the peripheral vessels. Two monthly intravitreal bevacizumab led to minimal improvement, and resolution of macular edema was achieved by an additional intravitreal triamcinolone. The findings at the posterior pole resembled those of Leber's miliary aneurysm. However, this case also demonstrated a peculiar vascular sheathing at the periphery and showed response to triamcinolone, which are evidences for an inflammatory condition.
Keywords: Coats' disease; Leber's miliary aneurysms; inflammation; vascular sheathing.