Primary lymphoma of the distal radius of a child: imaging features

Primary lymphoma of bone (PLB) is a rare entity, defined as a lymphoma confined to the bone without evidence of systemic involvement. The disease commonly affects middle-aged to elderly population and it accounts for less than 1% of all malignant lymphomas. We present a case of a 10-year-old child affected by PLB of the forearm and the frontal bone. Characteristic imaging features of PLB and the main differential diagnosis were discussed.