bone island


Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.
Related to bone island: enostosis

bone is·land

a macroscopic focus of cortical bone within medullary bone, commonly seen as a dense round or oval opacity on radiographs of the pelvis, femoral head, humerus, or ribs.
A benign focus of compact bone within cancellous bone, almost invariably an incidental finding, which can mimic an osteoblastic metastasis—e.g., from prostate cancer