case_images: PMC5481619_01
case_images: Pre-operative images of the patient's sternal mass.
case_images: TOORTHJ-11-479_F1.jpg
case_images: PMC5481619_01_TOORTHJ-11-479_F1.jpg
case_images: F1
case_images: This area was non-mobile and non-tender to palpation (Fig. 1).
case_images: CT scan of the chest at initial presentation, including axial Fig. (2A) and a sagittal Fig. (2B) views.
case_images: TOORTHJ-11-479_F2.jpg
case_images: PMC5481619_01_TOORTHJ-11-479_F2.jpg
case_images: F2
case_images: No underlying marrow changes were noted (Fig. 2).
case_images: MRI scan of the chest after biopsy. (A) T2 weighted axial slice, (B) T1 weighted sagittal slice, and (C) short tau inversion recovery (STIR) sagittal slice of the chest.
case_images: TOORTHJ-11-479_F3.jpg
case_images: PMC5481619_01_TOORTHJ-11-479_F3.jpg
case_images: F3
case_images: The mass was seen extending posteriorly with abutment of the left thymus and great vessels (Fig. 3).
case_images: Intra-operative image of the chest wall after resection.
case_images: TOORTHJ-11-479_F4.jpg
case_images: PMC5481619_01_TOORTHJ-11-479_F4.jpg
case_images: F4
case_images: Fig. (4) shows the chest wall after resection and Fig. (5) shows the resected specimen.
case_images: (A) Low power view of low cellularity cartilaginous neoplasm pushing into marrow space (left) and circumferentially entrapping bone (right). (B) A high-power view of chondrosarcoma circumferentially entrapping pre-existing lamellar bone, which has also undergone osteonecrosis.(C) Chondrocyte hypercellularity and cytologic atypia in the setting of bony entrapment.
case_images: TOORTHJ-11-479_F6.jpg
case_images: PMC5481619_01_TOORTHJ-11-479_F6.jpg
case_images: F6
case_images: Final pathology demonstrated neoplastic cartilage surrounding pre-existing trabecular bone with associated osteonecrosis consistent with low grade chondrosarcoma with microscopically negative margins and closest being at 2 millimeters from the superficial skin (Fig. 6).
case_images: Follow up CT scan of the chest including axial Fig. (7A) and a sagittal Fig. (7B) views.
case_images: TOORTHJ-11-479_F7.jpg
case_images: PMC5481619_01_TOORTHJ-11-479_F7.jpg
case_images: F7
case_images: The patient was followed with quarterly physical exams and radiographs and as of 18 months postoperatively has no pain or recurrence noted on a most recent chest CT scan (Fig. 7).