Radiation induced fatty marrow replacement
Back pain. Previous history of gynaecological cancer, which including radiotherapy treatment.
Loading Stack -
0 images remaining
High signal on both T1 and T2 in a very demarcated fashion involving L2 to the sacrum.
No focal bone lesion.
Conus and cauda equina normal.
This example shows fatty replacement of the bone marrow due to radiation therapy. After 3-6 weeks marrow cellularity is replaced by central fat predominantly surrounding the basivertebral veins. Hence on all MRI sequences in the zone of radiation therapy the bones return signal consistently with fat.