case_images: PMC10695461_01
case_images: Preoperative magnetic resonance imaging. (a) Midsagittal T2-weighted image
  (T2WI) with fat suppression revealing a hyperintense lesion causing
  medullary invasion at the T12-L1 levels. (b) Midsagittal T2WI with
  fat suppression showing a hyperintense expansive lesion in the right
  paravertebral area. (c) Axial T2WI with fat suppression revealed a
  significant spinal cord compression by the tumoral mass.
case_images: SNI-14-387-g001.jpg
case_images: PMC10695461_01_SNI-14-387-g001.jpg
case_images: F1
case_images: A 24-year-old male presented with back pain/paresthesias associated with a growing right-sided, posterior, infiltrating mass magnetic resonance (MR)-documented T12-L1 [Figure 1].
case_images: Intraoperative images. (a) View of the tumor after posterior laminectomy. (b)
  View of the paravertebral area after the tumor resection. (c) Tumoral mass
  after surgical resection.
case_images: SNI-14-387-g002.jpg
case_images: PMC10695461_01_SNI-14-387-g002.jpg
case_images: F2
case_images: In addition, the tumor was removed from the costal cartilage of the 10-12 ribs (i.e., due to invasion of the thoracic cage/right hemithorax) [Figure 2].
case_images: Biopsy examination (histology). (a) Abundant cartilaginous proliferation with
  chondrocytes embedded in lacunae. (b and c) Minimally increased cellularity
  and occasional binucleated nuclei and lobular growth pattern.
case_images: SNI-14-387-g003.jpg
case_images: PMC10695461_01_SNI-14-387-g003.jpg
case_images: F3
case_images: The biopsy was consistent with malignant transformation into a low-grade chondrosarcoma [Figure 3].
case_images: Postoperative magnetic resonance imaging. (a and b) Midsagittal T2-weighted
  image (T2WI) with fat suppression showing complete resection of the tumoral
  components. (c) Axial T2WI with fat suppression revealing resolution of the
  spinal cord compression after the tumor removal, with the right kidney
  posterior displacement due to surgical procedure.
case_images: SNI-14-387-g004.jpg
case_images: PMC10695461_01_SNI-14-387-g004.jpg
case_images: F4
case_images: The postoperative MR imaging confirmed complete tumoral resection [Figure 4].
case_images: Study flowchart describing the literature search and analysis
  process.
case_images: SNI-14-387-g005.jpg
case_images: PMC10695461_01_SNI-14-387-g005.jpg
case_images: F5
case_images: Five articles met our inclusion criteria and included seven patients [Figure 5].