case_images: PMC10487116_01
case_images: MRI images of SS in spinal canal. T1WI sagittal (1A) displays a striped, iso-signal mass within the spinal canal; T2WI sagittal view (1B) reveal an iso-signal mass with mixed patchy high signal areas; T1WI enhanced sagittal view (1C) shows significant inhomogeneous enhancement; T1WI coronal view (1D) and axial view (1E) show (arrow) demonstrate that part of the lesion extends outward along the first and second sacral foramen on the right.
case_images: jbsr-107-1-3253-g1.jpg
case_images: PMC10487116_01_jbsr-107-1-3253-g1.jpg
case_images: F1
case_images: The mass exhibited an isosignal on T1WI (Figure 1A), and exhibited an isosignal and a mixed patchy high signal on T2WI (Figure 1B). Additionally, a portion of the lesion (arrow) extended outward along the first and second sacral foramens on the right (Figure 1C-E).
case_images: Pathological results. hematoxylin-eosin staining (x100) (2A), Immunohistochemical staining (2B).
case_images: jbsr-107-1-3253-g2.jpg
case_images: PMC10487116_01_jbsr-107-1-3253-g2.jpg
case_images: F2
case_images: TLE-1 (+), H3k27me3 (+), and S-100 (+); FISH test: SS18-SSX (+, 50%) (Figure 2), suggesting the existence of SS18-SSX gene fusion. The pathological diagnosis was intraspinal synovial sarcoma.