CTICasesMetastatic Melanoma to Rib with Extrapleural Mass
Imaging findings
A frontal chest radiograph showed a partially defined opacity with a broad contact to the lateral chest wall, associated with destruction of a posterior rib. CT confirmed a metastatic lesion from melanoma, involving the rib and extending into the extrapleural space, creating the visible opacity and rib destruction.
Key takeaways
Metastatic disease to the ribs can manifest as lytic lesions with associated extrapleural soft tissue components. Radiographic signs such as an ill-defined opacity with broad contact to the chest wall and focal rib destruction should raise suspicion for a chest wall mass, which warrants further evaluation with CT to characterize the extent of involvement.
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