Oculoplastics Service, Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Ophthalmic Plast Reconstr Surg. 2013 Jan-Feb;29(1):e3-5. doi: 10.1097/IOP.0b013e31825412f7.
Orbital lesions include a broad spectrum of tumors, vascular abnormalities, and inflammatory conditions. High-resolution imaging has become an invaluable tool toward formulating an accurate diagnosis, and facilitates proper counseling regarding appropriate interventions. Imaging may guide whether partial excision to minimize damage to orbital structures, or en bloc removal to prevent potential recurrence, as seen in mesenchymal tumors, is indicated., Recently, dynamic contrast-enhanced magnetic resonance angiography (MRA) has demonstrated use in helping differentiate orbital vascular lesions. This imaging modality uses rapid MRI acquisition to provide noninvasive, dynamic flow information with high spatial resolution. However, even with modern imaging, reaching a diagnosis prior to histopathological analysis can be challenging. We present a case of orbital fibrous histiocytoma that appeared nearly identical to cavernous hemangioma on dynamic contrast-enhanced MRA.
眼眶病变包括广泛的肿瘤、血管异常和炎症性疾病。高分辨率成像已成为制定准确诊断的宝贵工具，并有助于就适当的干预措施进行适当的咨询。成像可以指导是否进行部分切除以最大程度地减少对眼眶结构的损伤，或者进行整块切除以防止潜在的复发，如间叶性肿瘤所见。最近，动态对比增强磁共振血管造影（MRA）已证明可用于帮助区分眼眶血管病变。这种成像方式使用快速 MRI 采集来提供具有高空间分辨率的非侵入性、动态血流信息。然而，即使使用现代成像，在进行组织病理学分析之前做出诊断也可能具有挑战性。我们提出了一个眼眶纤维组织细胞瘤的病例，该病例在动态对比增强 MRA 上几乎与海绵状血管瘤相同。
