title: Conjunctival pigmentation following pars plana vitrectomy.
abstract: 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.
mesh_terms: D000328:Adult; D001706:Biopsy; D003229:Conjunctival Diseases / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008297:Male; D008548:Melanosis / Q000209:etiology* / Q000473:pathology; D008854:Microscopy, Electron; D014821:Vitrectomy / Q000009:adverse effects*