1/2. Anterior segment ischemia following pterygium surgery.A 60-year-old woman developed anterior segment ischemia 1 week after an uneventful pterygium excision in the left eye. Corrected visual acuity fell from 20/20 to 20/200. Ophthalmic examination found keratic precipitates on the corneal endothelium, cells in the aqueous humor, and necrosis of the lower half of the iris with posterior synechiae resulting in a fixed and distorted pupil. On therapy of topical corticosteroid eyedrops hourly and atropine eyedrops three times a day, the iridocyclitis resolved in 2 weeks. At the final examination 3 months after the surgery, the corrected visual acuity was 20/20. The atrophy of the lower half of the iris and posterior synechiae in the lower half of the pupil, giving the fixed and distorted pupil, were noted as sequelae. iris fluorescein angiography revealed filling defects in the lower half of the iris but no leakage from iris vessels. Systemic evaluation was unremarkable except for mild hypertension. Doppler studies of carotid, ophthalmic, and central retinal arteries were normal. mitomycin C, beta-irradiation and rectus muscle fixation sutures were not used. Only conjunctival dissection or episcleral cauterization were seen as possible causes of interference with the anterior segment blood supply. We believe this is the first report of anterior segment ischemia following pterygium surgery.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/2. pterygium with granuloma faciale-like histologic picture.PURPOSE: Description of a case with an atypical conjunctival pterygium with an unusual histologic picture suggesting granuloma faciale, a vasculitis-like disease of facial skin with a chronic, indolent course. Discussion of diagnosis and treatment. methods: Repeated clinical and histologic observations. RESULTS: A pterygium with an unusual nasosuperior localization was excised and examined microscopically. There was a dense vessel-related inflammatory infiltrate, essentially identical to granuloma faciale. The lesion recurred and, as granuloma faciale is amenable to dapsone (diphenyl sulfone), treatment with 100 mg daily resulted in rapid improvement, whereas reduction of the dose to 50 mg daily resulted in relapse. Reinstitution of the original dose resulted in normalization of the histologic picture. However, a recurrent pterygium developed, which had a quite unspecific histologic picture. CONCLUSION: A disease with a histologic picture essentially identical to granuloma faciale may manifest itself as a pterygium. Treatment with dapsone may be beneficial.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |