My boyfriend has recently discovered his back is not well. So the Dr. did a MRI of the lumbar spine without contrast. The findings are, Lumbar alignment is intact, Cerebral alignment is intact, Vertebral body heights are preserved. No acute compression deformities are present. There is diffuse marrow heterogeneity. There is much more.. But my question and concern is..what is diffuse marrow heterogeneity?? Is it possible there may be cancer in the marrow, ? Not knowing what the definition I looked on line and briefly read what I saw that s how I came up with possible cancer,. Thank you for your time I am hoping to get some kind of understanding to diffuse marrow heterogeneity.