Fig. 9
From: Tumor and tumorlike conditions of the pleura and juxtapleural region: review of imaging findings
Diagnosis: chondrosarcoma. Technique: contrast-enhanced chest CT and MRI. Description: A 64-year-old woman with a history of smoking, presented due to shortness of breath. The axial contrast-enhanced CT scan (a, b) reveals an expansile lesion with extensive calcifications located at the costochondral junction of the right 3rd rib (note a typical arc-and-ring pattern of calcification). On the axial T1-weighted MR image (c) the lesions have a high signal intensity. The axial T2-weighted MR image (d) shows a peripheral hyperintense mass with internal low-intensity foci, reflecting the cartilaginous matrix with chondroid calcifications