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Original Article Incidence of Calcification of the Trochlear Apparatus in the Orbit
BibTeX
@MISC{Ko_originalarticle,
author = {Sung Ju Ko and Yun-jeong Kim},
title = {Original Article Incidence of Calcification of the Trochlear Apparatus in the Orbit},
year = {}
}
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Abstract
Purpose: To quantify the incidence of asymptomatic incidental trochlear calcifications and to describe their clinical features. Methods: 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. Results: 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. Conclusions: 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. Key Words: Calcification, Diabetes mellitus, Orbital diseases, Trochlear apparatus, X-ray computed tomography
Keyphrases
trochlear calcification trochlear apparatus original article incidence male patient pathologic condition age-specific prevalence rate ct image thyroid disease benign finding asymptomatic incidental trochlear calcification clinical feature key word foreign body bilateral calcification incidental asymptomatic orbital calcification diabetes mellitus age distribution female patient mean age
