A case of chondrosarcoma with costovertebral location in the posterior mediastinum: Resection and stabilization.

Chondrosarcoma, a primary malignant bone tumor, rarely occurs in the vertebrae. We report a 29-year-old female with a 6 × 4.2 cm chondrosarcoma in the posterior mediastinum originating from the left 9th costa vertebral junction involving vertabrea corpus. Surgical resection performed involving posterior thoracotomy, 8-9th rib resection, 8-9th thoracal vertebrae partial corpectomy, laminectomy, spinal instrumentation, and chest wall stabilization. Pathology confirmed chondrosarcoma with safe margins. The patient remained recurrence-free for 9 years. This case highlights the importance of wide-margin surgical resection and multidisciplinary approaches for long-term survival in chondrosarcoma patients.