Acute myeloid leukemia in relapse with bilateral lower extremity weakness and low back pain. The bone marrow is diffusely heterogeneous. There is lack of the usual lumbar lordosis and slight anterolisthesis if L2 on L3. The cervical and thoracic vertebral column alignment is otherwise within normal limits. There are disc bulges at L4-5 and L5-S1, as well as ligamentum flavum thickening that result in mild to moderate neural foraminal narrowing and spinal canal narrowing. Less prominent degenerative spondylosis in the rest of the lumbar spine do not results in significant spinal canal or neural foraminal narrowing. LIkewise, there is no significant cervical or thoracic spinal canal stenosis. The vertebral body heights are preserved. The spinal cord is unremarkable, aside from diffuse linear artifact on STIR. The paravertebral soft tissues are unremarkable. There are multiple bilateral renal cysts.
1. Diffuse bone marrow heterogeneity is likely attributable to acute myeloid leukemia.2. Degenerative spondylosis at L4-5 and L5-S1 result in mild to moderate neural foraminal narrowing and spinal canal narrowing. 3. No evidence of discitis-osteomyelitis.