"Bone islands occur in the medullary cavity, merging with trabecular bone. They may be solitary or multiple (monostotic or polyostotic). The size of a bone island is typically 2 cm in maximal dimension are called giant bone islands 4,8,10."
Expected headings
"Associations"
"Plain radiograph / CT"
"Bone islands are commonly seen as small, round or oval foci of homogeneously dense bone within the medullary space. They do not cause cortical destruction or periosteal reaction."
"There is usually no technetium-99m MDP uptake, and a normal bone scan can exclude sclerotic bone metastases or osteosarcoma. However, low-grade scintigraphic activity has sometimes been reported in histologically proven bone islands, particularly if the lesion is >1 cm 3."