Fig. 5From: Primary paediatric epidural sarcomas: molecular exploration of three casesRepresentative post-contrast T1-weighted MRI images in sagittal (a) and axial (b) demonstrating a heterogeneously enhancing T6 to T9 extramedullary, extradural soft tissue mass with suggestion of a dural tail. c Haematoxylin and eosin stain slide (× 100) illustrating a malignant round cell neoplasm. d Immunohistochemistry slide (× 100) shows positivity for CD99Back to article page