A 56-year-old man presented with right-side shoulder pain. Radiographs revealed an irregular amorphous lesion within the head of the humerus, which strongly suggested a cartilaginous tumor (Fig 1). MRI confirmed a lesion of likely cartilaginous origin. Open biopsy was performed, and the pathologic results were consistent with low-grade chondrosarcoma. A bone scan and CT scan of the chest revealed no metastatic disease.
Figure 1.Initial shoulder radiograph revealed a lytic lesion centered in the humeral head with amorphous and rounded calcifications typical of a chondroid neoplasm. Surgical biopsy specimen revealed grade II of III chondrosarcoma.
Grahic Jump Location