Conjunctival pigmentation following pars plana vitrectomy. 1987

W E Smiddy, and J H Yeo, and R G Michels, and W R Green

A 32-year-old white man developed distinctive episcleral and conjunctival pigmentation surrounding a sclerotomy site 6 weeks after vitrectomy and retinal reattachment surgery. The conjunctival lesion was biopsied during a second operation to remove an epiretinal membrane causing macular pucker. Light and electron microscopic studies demonstrated melanin granules extracellularly and within macrophages.

UI MeSH Term Description Entries
D008297 Male Males
D008548 Melanosis Disorders of increased melanin pigmentation that develop without preceding inflammatory disease. Chloasma,Freckles,Melanism,Melasma,Chloasmas,Freckle,Melanoses,Melasmas
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D003229 Conjunctival Diseases Diseases involving the CONJUNCTIVA. Conjunctival Disease,Disease, Conjunctival,Diseases, Conjunctival
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies
D014821 Vitrectomy Removal of the whole or part of the vitreous body in treating endophthalmitis, diabetic retinopathy, retinal detachment, intraocular foreign bodies, and some types of glaucoma. Vitrectomies

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