Abstract
PurposeTo describe the immunohistochemical features of a retinal hamartoma.MethodsA 38 year old man was referred for preretinal fibrosis on his right eye. There was loss of vision for more than 8 years with metamorphopsia. The left eye was normal. Oct imaging showed an epiretinal fibrosis with extensive macular oedema. A 27Gauge vitrectomy was performed. The lamina limitans interna (ilm) was peeled after staining with Membrane Blue Dual and sent for histopathology.ResultsAfter removal the epiretinal membrane was immediately fixed with PreservCyt® in a ThinPrep® container. The specimen was routinely processed by the Cellient® embedding system. Microscopy showed a folded Pas positive membrane, recognized as ilm with on one side some glial remnants and on the other side a cuboidal non‐pigmented epithelium. The glial remnants stained with glial fibrillar protein (gfap), the epithelium with prekeratin AE1/AE3. CD 34 stain was positive in preretinal capillaries.ConclusionsA strange retinal fibrosis consisted of glial tissue and a row of superficial cuboidal non‐pigmented epithelium cells. This kind of hamartoma with immunohistological description was never investigated or published.
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