title: Pigmented macular pucker.
abstract: A 66-year-old woman developed a darkly pigmented preretinal membrane. In the fundus periphery there was a round retinal hole about one disk diameter with pigmentation in its immediate vicinity. Pigmented, preretinal membranes arise from retinal pigment epithelium cells that exit through a retinal tear and settle on the inner retinal surface where they proliferate and form a membrane. Some preretinal membranes arise from unpigmented cells such as glial cells and become colored with iron pigment because of the accumulation of pigmented macrophages and free pigment debris. A retinal hole is not necessary for the occurrence of a glial membrane.
mesh_terms: D000368:Aged; D002386:Cataract / Q000150:complications; D005260:Female; D005901:Glaucoma / Q000150:complications; D006801:Humans; D008266:Macula Lutea / Q000473:pathology*; D008566:Membranes / Q000473:pathology; D010857:Pigment Epithelium of Eye / Q000473:pathology*; D012163:Retinal Detachment / Q000150:complications / Q000473:pathology*