systemic approach

In the table on the above the morphology of a bone lesion is combined with the age of the patient.
Notice the following:
-Infections, a common tumor mimic, are seen in any age group. Infection may be well-defined or ill-defined osteolytic, and even sclerotic.
-EG and infections should be mentioned in the differential diagnosis of almost any bone lesion in patients < 30 years.
- Many sclerotic lesions in patients > 20 years are healed, previously osteolytic lesions which have ossified, such as: NOF, EG, SBC, ABC and chondroblastoma.


http://www.radiologyassistant.nl/en/494e15cbf0d8d