Posterior Scleral Bowing With Choroidal Nevus on Enhanced-Depth Imaging Optical Coherence Tomography

摘要: Importance Recognition of posterior scleral bowing with choroidal nevus is essential to avoid an underestimation tumor thickness. Objective To describe a particular observation associated on enhanced-depth imaging (EDI) optical coherence tomography (OCT). Design, Setting, and Participants Retrospective observational case series at referral center involving 17 eyes patients. Patients were seen from June 2013 July 2014, all data collected analyzed 2014 2014. Interventions medical record review multimodal including fundus photography, autofluorescence, infrared reflectance, ultrasonography, EDI-OCT. Main Outcomes Measures Clinical characteristics. Results Analysis 318 consecutive patients imaged over 1-year period revealed that cases (5%) demonstrated the EDI-OCT feature bowing. Of these cases, mean patient age was 58 years (median, years; range, 36-75 years) there 6 men (35%) 11 women (65%). The classified as pigmented (n = 3; 18%), nonpigmented (n = 2; 12%), mixed pigmentation (n = 12; 71%), no surrounding halo (n = 7; 41%). Associated features included overlying drusen (n = 9; 53%), retinal pigment epithelial alterations subretinal fluid (n = 5; 29%), orange 18%). clinically estimated be 4.91-mm basal dimension measured ultrasonographically 1.59-mm By EDI-OCT, thickness 628 µm (0.63 mm). All excavation 398 377 µm; 134-739 µm). Underlying nevus, not measurable; however, margin, choroid sclera appeared normal. correlated reduced distance optic disc (difference, 1.3 mm; 95% CI, −2.95 mm 5.51 P  = .01) foveola 2.14 0.80 3.48 Conclusions Relevance Choroidal can show focal in 5% cases. This finding related more location less/mixed pigmentation, halo. could lead bows backward rather than forward.