Abstract

BACKGROUND Incidental findings are presented in radiology reports. Many of these findings do not require further investigation; however, some require further investigation and repeated imaging. The aim of this study was to determine the frequency of incidental findings on CT scans of patients with head trauma from 2005 to 2015. METHODS This analytical cross-sectional study was conducted in years on 5,193 CT scan reports referred to Shahid Rahnemoun hospital in Yazd, Iran. The images were evaluated by consensus agreement of two radiologists. The relationship between age, sex and incidental findings was analyzed using the SPSS 20 software. RESULTS A total of 5,193 subjects with a mean age of 34.16 ± 21.17 were examined. About 64% of cases were male. The frequency of incidental findings was 10.9%. The most common finding was calcification with a frequency of 3.3% and the least was Dandy Walker finding at 0.02%. There was no relationship between age, sex and the frequency of incidental findings. No significant trend was found between IFs frequency during ten years. CONCLUSION The results of this study indicated that most incidental findings were related to benign findings, but also malignant findings were diagnosed.