case_images: PMC8571252_01
case_images: Pre-operative imaging. (a) sagittal MRI contrast-enhancing intradural extramedullary lesion at T4 with severe compression of the spinal cord, (b) sagittal CT demonstrates hyperdense signal within the tumor suggesting calcifications.
case_images: SNI-12-505-g001.jpg
case_images: PMC8571252_01_SNI-12-505-g001.jpg
case_images: F1
case_images: The CT scan confirmed the lesion was hyperdense, consisting of intratumoral ossification [Figure 1]. The predominant differential diagnoses included ossified meningioma versus schwannoma.
case_images: Hematoxylin and eosin (x20) images demonstrate (a) meningothelial cells with swirls, (b) numerous psammoma bodies, (c and d) ossifications.
case_images: SNI-12-505-g002.jpg
case_images: PMC8571252_01_SNI-12-505-g002.jpg
case_images: F2
case_images: As the tumor showed little mitotic activity, and there were no areas of hypercellularity, the final diagnosis was for a WHO grade I (benign) meningioma [Figure 2].