54-year-old woman with right clavicle lesion identified on MRI. There is a poorly defined lucent lesion within the mid to distal clavicular diaphysis, which perhaps represents the lesion seen on outside MRI. We see no cortical penetration or soft tissue mass. Mild osteoarthritis affects the acromioclavicular joint.
Poorly defined lucency within the clavicular diaphysis is nonspecific, but in a 54-year-old woman the possibility of metastatic disease should be considered.