Murray J L, Hayman L A, Tang R A, Schiffman J S
Department of Ophthalmology, UTMB, Galveston, USA.
J Neuroophthalmol. 1995 Dec;15(4):203-8. doi: 10.3109/01658109509044603.
To use modern computed tomography (CT) imaging to quantify the incidence of asymptomatic incidental orbital calcifications and describe their histological features.
One hundred orbital CT scans were reviewed. In addition, patients who had orbital calcification(s) detected on a brain CT scan were examined by the ophthalmology service.
Of the orbital CT scans, 2% had bilateral drusen of the optic nerve head, 3% had calcified scleral plaques anterior to the medial or lateral rectus muscles, and 3% had bilateral ossification of the trochlear apparatus. Routine brain CT scans detected asymptomatic calcifications of the sclera and dura surrounding the proximal optic nerves.
Incidental asymptomatic orbital calcifications are commonly encountered on modern high-resolution CT images of the brain and orbit. This article should help the clinician to confidently distinguish these densities from foreign bodies or pathological calcifications.
运用现代计算机断层扫描（CT）成像技术量化无症状性眼眶偶然钙化的发生率，并描述其组织学特征。
回顾了100例眼眶CT扫描。此外，对在脑部CT扫描中检测出眼眶钙化的患者进行了眼科检查。
在眼眶CT扫描中，2%有双侧视神经乳头玻璃膜疣，3%在内直肌或外直肌前方有巩膜钙化斑，3%有双侧滑车装置骨化。常规脑部CT扫描检测到近端视神经周围巩膜和硬脑膜的无症状钙化。
在现代脑部和眼眶的高分辨率CT图像上，偶然出现的无症状眼眶钙化很常见。本文应有助于临床医生自信地将这些密度与异物或病理性钙化区分开来。
