This depicts two findings during progression of a disease. What's the most likely diagnosis? I'll post the correct answer in a couple of days!
Correct answer: This is DM retinopathy. Stage 1 shows pre-proliferative retinopathy, with hemorrhages and a cotton-wool spot. Stage 2 shows proliferative retinopathy, with new vessel formation and hemorrhages. Hyperglycemia induces a high retinal blood flow, which causes capillary occlusions (seen as cotton-wool spots). This then leeds to local hypoxia, ischemia and new vessel formation. These new vessels can bleed, fibrose and detach from the retina. Aspirin may prevent this.