Multiple rib infarcts: a rare form of osteonecrosis in antiphospholipid syndrome

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Figure 1 .

Bone scintigrams of whole body (A), anterior (B), lateral and oblique (C) views of the chest show multiple areas of decreased and increased uptake in the ribs, consistent with bone infarction.

Figure 2 .

Histological examination of trabecular bone shows the signs of bone death. The trabeculae are preserved, but the lacunae are empty and the marrow is dead (haematoxylin and eosin x100).