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Title: Omega Sign: A Distinct Optical Coherence Tomography Finding in Macular Combined Hamartoma of Retina and Retinal Pigment Epithelium. Author: Kumar V, Chawla R, Tripathy K. Journal: Ophthalmic Surg Lasers Imaging Retina; 2017 Feb 01; 48(2):122-125. PubMed ID: 28195614. Abstract: BACKGROUND AND OBJECTIVE: To report a distinct optical coherence tomography (OCT) appearance of macular combined hamartoma of retina and retinal pigment epithelium (CHRRPE). PATIENTS AND METHODS: This is a retrospective case series of four eyes of four patients with macular CHRRPE who were assessed with the help of color fundus photographs, swept-source OCT (SS-OCT), and fundus fluorescein angiography wherever required. RESULTS: All four patients presented with decreased visual acuity. SS-OCT in all patients showed adherent epiretinal membrane (ERM) and localized thickening of underlying retina. An omega-shaped disorganization of inner retinal layers was seen bounded posteriorly by the outer plexiform layer. This was termed, "Omega sign." CONCLUSION: Omega sign is a characteristic feature of macular CHRRPE and may help to distinguish macular CHRRPEs from ERMs. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:122-125.].[Abstract] [Full Text] [Related] [New Search]