Uveitis and Retina Services, L V Prasad Eye Institute, Mithu Tulsi Chanrai Campus, Bhubaneswar, Odisha, India.
Uveitis and Retina Services, L V Prasad Eye Institute, Mithu Tulsi Chanrai Campus, Bhubaneswar, Odisha; Uveitis and Retina Services, C L Gupta Eye Institute, Moradabad, Uttar Pradesh, India.
Indian J Ophthalmol. 2022 Aug;70(8):2981-2985. doi: 10.4103/ijo.IJO_70_22.
To describe clinical and imaging characteristics of the outer retinal folds (ORF) in cases of retinitis, retinochoroiditis, and chorioretinitis.
Retrospective review of retinitis cases with presence of ORFs either at presentation or during follow up.
ORFs were seen adjacent to retinitis lesions in 16 eyes of 14 cases (retinitis post-febrile illness n = 10, toxoplasma retinochoroiditis n = 2, fungal chorioretinitis n = 2) either at presentation (n = 2) or during follow up (n = 14). Optical coherence tomography (OCT) appearance was outer retinal vertical stout lesions involving ellipsoid, external limiting membrane, and outer nuclear layer. All the cases had a presence of past or concurrent subretinal fluid and/or subretinal hyperreflective material when ORF was seen. ORF resolved with variable outer retinal atrophy over a mean period of 2.86 months.
ORF is observed in cases of retinitis with subretinal fluid either at presentation or during resolution. It is not specific to any etiological disease. Differentiation of this sign from vertical outer retinal stripes in viral retinitis on OCT is important to avoid misinterpretation.
描述视网膜病变、脉络膜炎和脉络膜视网膜炎病例中外层视网膜褶皱（ORF）的临床和影像学特征。
回顾性分析存在 ORF 的视网膜病变病例，这些 ORF 或在就诊时出现，或在随访期间出现。
在 14 例病例的 16 只眼中（发热后性视网膜病变 n = 10，弓形体脉络膜视网膜炎 n = 2，真菌性脉络膜炎 n = 2），无论是在就诊时（n = 2）还是在随访期间（n = 14），均发现 ORF 紧邻视网膜病变病灶。光学相干断层扫描（OCT）表现为累及椭圆体、外界膜和外核层的垂直粗壮的外层视网膜病变。当出现 ORF 时，所有病例均存在既往或同时存在的视网膜下液和/或视网膜下高反射物质。ORF 在平均 2.86 个月的时间内，随着可变的外层视网膜萎缩而消退。
在外层视网膜下液存在于就诊时或消退期间的视网膜病变病例中观察到 ORF。它并非特定于任何病因疾病。在 OCT 上，将此征象与病毒性视网膜病变中的垂直外视网膜条纹区分开来非常重要，以避免误判。
