Fig. 3. Magnetic resonance imaging (MRI) findings of a 34-year-old man with involvement of the second lumbar vertebral body by myeloid sarcoma who reported back pain and bilateral leg weakness. (A) Sagittal T1-weighted MRI scan of the spine shows an epidural and paravertebral mass iso-intense to muscle at the second lumbar vertebra level. (B) Sagittal T2-weighted MRI scan of the spine shows an epidural and paravertebral mass iso-intense or mildly hyper-intense to muscle at the second lumbar vertebra level. (C) Axial T2-weighted MRI scan of the spine shows a heterogeneously enhancing epidural mass with enhancement similar to or greater than that of normal muscle.