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Abstract：
Circumscribed choroidal hemangioma is a benign vascular tumor which presents in middle-aged adults with progressive diminution of vision, metamorphopsia, floaters, and visual field defects. Diagnosis is based on the characteristic clinical features. It is an orange-red, usually solitary, tumor situated in the posterior pole. The visual symptoms are because of the associated subretinal fluid, cystoid macular edema, and, in long-standing cases, retinal pigment epithelium changes, subretinal fibrosis and retinoschisis. It must be distinguished from the more ominous amelanotic melanoma and choroidal metastasis. Diagnostic tools such as ultrasound, fundus fluorescein angiography, indocyanine green angiography, and optical coherence tomography are helpful in cases with diagnostic dilemma. Treatment is indicated in symptomatic cases. The management of choroidal hemangioma has evolved over the years beginning with laser photocoagulation to transpupillary thermotherapy, photodynamic therapy, plaque brachytherapy and external beam radiotherapy. No one therapeutic option holds superiority over the other. In this article, we review the epidemiology, clinical manifestations and treatment of the circumscribed variant of choroidal hemangioma.
摘要：
周围脉络膜血管瘤是一种良性血管肿瘤，在中年人中表现为视力进行性下降，变态,漂浮物,和视野缺陷。诊断基于特征性临床特征。它是橙红色的，通常是孤独的，位于后极的肿瘤。视觉症状是因为相关的视网膜下液，黄斑囊样水肿，and,在长期存在的情况下，视网膜色素上皮改变，视网膜下纤维化和视网膜裂开。必须将其与更不祥的无色素性黑色素瘤和脉络膜转移区分开。诊断工具，如超声波，荧光素眼底血管造影,吲哚菁绿血管造影,和光学相干断层扫描对诊断困境的病例很有帮助。在有症状的情况下需要治疗。多年来，脉络膜血管瘤的治疗已经从激光光凝到经瞳孔热疗开始，光动力疗法,斑块近距离放射治疗和外部放射治疗。没有一种治疗选择比另一种更具优势。在这篇文章中,我们回顾了流行病学，脉络膜血管瘤局限性变异型的临床表现和治疗。
