16 year old female with syndromic enchondroma. BONE MARROW: There are numerous low T1 and high T2 lesions especially medially along the proximal left femoral neck that appear similar to recent radiographs and increased when compared to prior MRI. One lesion extends from the femoral neck into the head, crossing the physis. Many similar lesions are noted in the femoral diaphysis, where they become confluent and expand the diaphysis and thin the cortical margin of the bone. These lesions also demonstrate a low T2 rim. No cortical disruption to suggest acute fracture or aggressive behavior.Please note that postcontrast characterization cannot be made as there are no precontrast T1 fat saturated imaging. SOFT TISSUES: There are a few prominent subcentimeter lymph nodes in the left inguinal region. No soft tissue masses. JOINTS: Joint spaces are well-maintained. No joint effusion present.ADDITIONAL
Multiple areas of marrow replacement by a nonaggressive appearing lesions. Further characterization will be possible when the patient returns for precontrast imaging sequences. An addendum will be made at that time.