Extensive bone infarct in myeloid leukemia correlation of bone scan and magnetic resonance imaging.

Severe left hip pain developed in a 61-year-old woman with chronic myeloid leukemia and transformation to acute leukemia while she was undergoing a bone marrow transplantation. Results of plain radiographs of the left hip were normal. Three-phase bone scanning was performed 5 days after the onset of symptoms and suggested a bone infarct involving the left proximal femur, although it was unusually extensive. A magnetic resonance image of the pelvis was performed on the next day and showed a diffuse bone marrow leukemic infiltrate and variegated nonenhancing signal abnormality within the proximal left femur, confirming the presence of an extensive bone infarct due to leukemic infiltration.