The accuracy of radiological imaging in the diagnosis of orbital lesions in a regional hospital
Aim: To compare the accuracy of radiological imaging with pathological findings in patients with orbital space- occupying lesions.
Patients and methods: This was a retrospective review of the records of consecutive patients who underwent orbitotomy for orbital masses in a regional hospital during 1998 to 2002. Only records with preoperative radiological reports and postoperative histopathological reports available were reviewed.
Results: Thirty two patients’ records were reviewed. The overall diagnostic accuracy of radiological imaging for specific groups of lesions was 78.1%. The accuracy of radiological imaging for the diagnosis of cystic lesions, vascular lesions, lacrimal lesions, neurogenic lesions, and lymphoid lesions was 100.0%, 83.3%, 60.0%, 50.0%, and 28.6%, respectively. In terms of accuracy of detecting malignancy, 17.6% of the lesions diagnosed as benign by imaging studies were malignant by histology. However, 50.0% of the lesions diagnosed as malignant by imaging studies were benign by histology.
Conclusions: Radiological investigations have a high specificity (0.92) and low sensitivity (0.28) for detecting malignancy. Radiology has a high negative-predictive value (0.82) and low positive-predictive value (0.50) for malignant lesions. Radiological reports from the studied regional hospital are accurate for ruling out malignant lesions and are relatively accurate for diagnosing cystic and vascular lesions.
How to Cite
The Journal has a fully Open Access policy and publishes all articles under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. For any use other than that permitted by this license, written permission must be obtained from the Journal.