Hemophiliac pseudotumor of the sacrum

Although the pelvis is a common site for hemophiliac pseudotumors, involvement of the axial skeleton, such as the spine and sacrum, is rare. A rare case of hemophiliac pseudotumor arising from a healed fracture of the sacrum is reported. Findings of plain radiographs, CT, and radionuclide bone scan may simulate tumors of neural origin, but the heterogeneity of MRI is suggestive of hemophiliac pseudotumor.