Minimal osteolytic changes: the initial manifestations of bone metastases and the primary stage of osteoblastic metastases.

<p>A. CT image showing a rib metastasis on the left, presenting as an intramedullary small patchy hyperdensity and a peripheral hypodense spot (black arrow). B. The lesion appears as an intramedullary area of slightly high signal on T2WI (FS) (white arrow).