Primary dedifferentiated chondrosarcoma of the lung with a 4-year history of breast cancer: A case report

Figure 1 Computed tomography findings of the patient's lungs and brain. A: Computed tomography (CT) examination in May 2021 showed that there was a space-occupying lesion in the lung lobe, and no obvious mass was seen in the right hilum; B: CT examination in May 2021 showed three intracranial space-occupying lesions; C: CT examination in November 2021 showed a soft tissue mass in the right hilum, blocking the bronchial lumen; D: CT examination in November 2021 indicated that the nodules in the brain had shrunk or disappeared.