Ko Sung Ju, Kim Yun-Jeong
Department of Ophthalmology, Hallym University Sacred Heart Hospital, Anyang, Korea.
Korean J Ophthalmol. 2010 Feb;24(1):1-3. doi: 10.3341/kjo.2010.24.1.1. Epub 2010 Feb 5.
To quantify the incidence of asymptomatic incidental trochlear calcifications and to describe their clinical features.
We retrospectively reviewed orbital computed tomography (CT) scans of 216 patients to identify the presence of trochlear calcifications. We analyzed the prevalence, age distribution, and gender preponderance of trochlear calcifications. We also examined age-specific prevalence rates for trochlear calcifications, as well as their relationship to systemic disease.
The mean age of patients was 26.8 years. Trochlear calcifications were observed in 35 (16%) of the 216 patients, and 18 of the 35 patients had bilateral calcifications. The rate of trochlear calcification was higher in males; 32 (20.9%) of 153 male patients had trochlear calcifications, compared with 3 (4.8%) of 63 female patients. Age, hypertension, diabetes mellitus, and thyroid disease were not significantly associated with the incidence of trochlear calcifications.
Incidental asymptomatic orbital calcification is more commonly observed on CT images than we expected and occurs predominantly in male patients. Understanding this to be a relatively common, benign finding may help us to rule out foreign bodies and other pathologic conditions.
量化无症状性滑车钙化的发生率并描述其临床特征。
我们回顾性分析了216例患者的眼眶计算机断层扫描（CT）图像，以确定滑车钙化的存在情况。我们分析了滑车钙化的患病率、年龄分布和性别优势。我们还研究了滑车钙化的年龄特异性患病率及其与全身性疾病的关系。
患者的平均年龄为26.8岁。在216例患者中，有35例（16%）观察到滑车钙化，其中35例中有18例为双侧钙化。男性滑车钙化率更高；153例男性患者中有32例（20.9%）有滑车钙化，而63例女性患者中有3例（4.8%）有滑车钙化。年龄、高血压、糖尿病和甲状腺疾病与滑车钙化的发生率无显著相关性。
偶然发现的无症状眼眶钙化在CT图像上比我们预期的更常见，且主要发生在男性患者中。认识到这是一个相对常见的良性发现可能有助于我们排除异物和其他病理情况。
