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首页> 外文期刊>Radiographics >Pediatric Orbit Tumors and Tumorlike Lesions: Neuroepithelial Lesions of the Ocular Globe and Optic Nerve
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Pediatric Orbit Tumors and Tumorlike Lesions: Neuroepithelial Lesions of the Ocular Globe and Optic Nerve

机译：小儿眶肿瘤和肿瘤样病变：眼球和视神经的神经上皮病变

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Tumors and tumorlike lesions of the globe and optic nerve in children represent a different histologic spectrum than in adults; the imaging appearances of these lesions reflect their pathologic features. Retinoblastoma is a tumor of infancy and the most common intraocular tumor in children. There are heritable and nonheritable forms. The most common clinical finding is leukocoria. The differential diagnoses of this sign include several nonneoplastic lesions: Persistent hyperplastic primary vitreous is a congenital persistence of an embryonic structure causing a retrolental mass. The primitive vasculature may produce a septum in the posterior chamber. Coats disease is a vascular malformation of the retina that produces a lipoproteinaceous subretinal exudate. The vascular malformation enhances with intravenous contrast material, and the fat-containing subretinal exudate does not. Larval endophthalmitis is a granulomatous reaction to the dead or dying larvae of Toxocara canis or T cati. The most important fe...
机译：与成年人相比，儿童的眼球和视神经的肿瘤和肿瘤样病变表现出不同的组织学谱。这些病变的影像学表现反映了它们的病理特征。视网膜母细胞瘤是婴儿期的肿瘤，是儿童中最常见的眼内肿瘤。有可继承和不可继承的形式。最常见的临床发现是白斑。这种体征的鉴别诊断包括几个非肿瘤性病变：持续性增生性原发性玻璃体是先天性持续存在的胚胎结构，引起后向性包块。原始脉管系统可能在后房产生隔膜。大衣病是视网膜的血管畸形，会产生脂蛋白性视网膜下渗出液。静脉造影剂可增强血管畸形，而含脂肪的视网膜下渗出液则不会。幼虫眼内炎是对犬Toxocara canes或T cati死或垂死的幼虫的肉芽肿反应。最重要的功能

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