Bilateral iliac and sacrum bone show areas of low signal of Gaucher cell infiltration with internal geographic areas of abnormal showing serpiginous margins of dark signal in keeping with bone infarcts.
Bilateral femoral shaft diaphyses are enlarged showing medullary expansion and cortical thinning.
- the right femoral diaphysis shows intramedullary large infiltration by low T1 and low T2 signal (Gaucher infiltration) with internal areas of medullary infarcts
- the left femoral diaphysis shows intramedullary large cystic lesion eliciting iso to hyperintense signal on T1 and cystic high signal on T2 WI resembling aneurysmal bone cyst, possibly Gaucheroma
- also, both femoral shafts are surrounded by soft tissue edema signals (evident on the left side), likely an acute bone crisis