MSCT performance of rare subdural osteoma

LI Fangyuan; LIU Jing; YANG Chunbo; ZHONG Dezhen; JIANG Tao

Abstract：Objective To explore the characteristic CT performance of subdural osteoma by analyzing the CT performance of 4 cases with subdural osteoma confirmed by 64-slice SCT and pathology.Methods We used PHILIPS 64-DCT scanners, including brain CT plain scanning and enhanced scanning.Thin-layer reconstruction of all images was completed.Results All cases occurred in the left frontal convexity lesions.There was a bar translucent space between lesions and the normal skull.The lesions did not enter the brain groove and crossed the midline.3 cases presented with larger lesions distribute along dural and wave-like shape.Lesions showed bone density with typical cancellous bone structure and peripheral cortical bone surrounding the cable.1 case presented with smaller lesions that showed the typical long bone-like performance.Surgery and pathology had confirmed the left frontal subdural osteoma.Conclusion The characteristic CT findings of subdural osteoma show the left frontal a typical bone-like structure.There is a bar translucent space between lesions and the normal skull.The lesions do not enter the brain groove and cross the midline.MPR reconstruction of MSCT displays good for subdural osteoma.