Fig. 1
From: Primary paediatric epidural sarcomas: molecular exploration of three cases
Representative post-contrast T1-weighted MRI images in axial (a) and coronal (b) demonstrating a right extra-axial, fronto-temporal lesion causing mass effect and midline shift. c Haematoxylin and eosin stain slide (× 100) shows tumour tissue with a bimorphic pattern, composed of primitive-looking spindle and round cells interspersed with islands of neoplastic cartilage. In many areas, the cartilage demonstrates hyalinization and secondary ossification