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ORIGINAL ARTICLE
Year : 2022  |  Volume : 4  |  Issue : 1  |  Page : 21

Trochlear apparatus calcification and its association with diabetes: A cross-sectional study among patients undergoing computed tomography scan involving orbit


Department of Radio-Diagnosis, Sri Devaraj Urs Medical College, Kolar, Karnataka, India

Correspondence Address:
L Yashas Ullas
No. 59/2, Kannur Village and Post, Hennur Bagalur Main Road, Bengaluru - 562 149, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/pajo.pajo_10_22

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Introduction: Trochlear apparatus calcifications can be found incidentally on computed tomography (CT) scans involving the orbit. The calcification often is misdiagnosed as intraorbital foreign body and vice versa. This study aims to find the prevalence of trochlear apparatus calcification and its association with diabetes. Methods: A cross-sectional study was conducted at a medical college hospital from January 2021 to March 2021. Two hundred and fifty-three patients undergoing CT of the brain and paranasal sinuses were recruited. The trochlear apparatus calcification is considered when attenuation is high at the point of angulation of the superior oblique muscle. Frequency and percentages were used, and Fischer's exact test was done for association. coGuide software was used for data analysis. Results: The participant's mean age was 49.16 ± 18.42 years. Out of 253 participants, 137 (54.15%) had diabetes. The prevalence of trochlear apparatus calcification was 3.95%. Out of 137 people with diabetes, 5 (3.65%) had trochlear apparatus calcification. Conclusion: The study shows that trochlear apparatus calcification prevalence was 3.95%. This benign calcification in CT should be differentiated from ocular foreign body and other pathological conditions.


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