Non-sclerotic Margin

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The term "Sclerotic Margin" for intraosseous lesions refers to a thin or thick, complete or incomplete rim of bone at the interface of the lesion with cancellous bone. For the extraosseous lesions this refers to the presence of a bony rim in the interface of the lesion with the surrounding soft tissues. It should be noted that  the program considers the bony rim outlining an extraosseous tumor as an intact cortex and not a periosteal reaction.  Detection of a sclerotic margin may require considerable scrutiny and the presence of even a tiny  rim of  bony  density  in the interface  of the intraosseous lesion with the cancellous bone is enough  to constitute a positive response for a sclerotic margin.