cotton wool patch

Ophthalmology A descriptor for the fluffy exudates and axoplasmic debris seen after microinfarcts in the retinal nerve fiber layer; CWPs are typical of grade III hypertensive retinopathy, but may also be seen in patients with connective tissue disease, diabetes mellitus, nonproliferative retinopathy, immune suppression, infections—Babesia microti, CMV, Pneumocystis carinii—ischaemia, pheochromocytoma, or bone marrow transplantation
Pathology See Cytoid bodies. Cf Cotton ball pattern

cotton wool patch

Retinitis angiospastica Ophthalmology A descriptor for the fluffy exudates and axoplasmic debris seen after microinfarcts in the retinal nerve fiber layer; CWPs are typical of grade III hypertensive retinopathy, but may also be seen in Pts with connective tissue disease, DM–nonproliferative retinopathy, immune suppression, infections–Babesia microti, CMV,.Pneumocystis carinii, ischemia, pheochromocytoma, BMT