TITLE: L5 -- S1 diskitis/osteomyelitis with large presacral abscess.
The findings most compatible with L5-S1 discitis/osteomyelitis with superior S1 endplate osteolysis. Slight widening of the L5 -- S1 intervertebral disc space. There is a presacral rim enhancing fluid collection measuring a 6.1 x 4.2 x 8.8 cm, measuring in the AP, transverse and craniocaudal dimensions, respectively. This fluid collection (abs) spans from the level of the mid L5 vertebral body to the level of inferior S3 vertebral body.