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Biomedical subjects

Z Gregor

Publications and source records attributed to Z Gregor.

81 records · Page 5Linked to original sources
PubMed1976

Retinal vascular changes in congenital hypertrophy of the retinal pigment epithelium.

The overlying retinal blood vessels were abnormal in five cases of congenital hypertrophy of the retinal pigment epithelium. This illustrated the well-recognized association between outer retinal degeneration and obliteration of the overlying retinal vasculature. The proposed pathophysiological mechanisms, however, seem inadequate to explain completely the morphological changes of the retinal blood vessels in the presence of atrophy of the outer retina.

Adult↗
PubMedDate not supplied

Vascular shunt of the optic disc resembling neovascularization in a diabetic patient with optic disc drusen.

PURPOSE: To report an insulin-dependent diabetic patient who was referred by the diabetic screening clinic as having proliferative diabetic retinopathy who was found to have bilateral optic disc drusen with optociliary shunt resembling neovascularization on the disc. METHODS: Complete ocular evaluation including a fluorescein angiography was performed. RESULTS: Fundus examination showed signs of mild nonproliferative diabetic retinopathy in the right eye and the presence of well-defined optic disc drusen in both eyes with a peculiar vascular abnormality resembling neovascularization on the right disc. The central retinal vein pulsation was normal on digital examination. Autofluorescence confirmed the presence of the optic disc drusen in both eyes. Fluorescein angiography showed no leakage from the optociliary shunt. The vascular abnormality has remained stable for 2 years. CONCLUSIONS: This case highlights the correlation of optic disc drusen and optociliary shunts which in diabetic patients can be misdiagnosed as neovascularization.

Diabetes Mellitus, Type 1↗
PubMedDate not supplied

Fibrous histiocytoma.

A 13-year-old boy underwent excision of a fibrous histiocytoma, which was initially thought to be a leiomyoma. When the tumor recurred, it was resected using wide tissue margins and frozen section control. Visual acuity remained normal although there has been some postoperative diplopia. There has been no recurrence over the past year. A local aggressive surgical approach is advocated when this tumor appears in the pediatric age group.

Adolescent↗