30-year-old male presents with back pain. Exam is limited by overlying gas and stool. Vertebral body heights are well-maintained. Degenerative disc disease affects the lower lumbar spine, particularly at L5-S1. The left and right pars interarticularis of the fifth vertebral body are not well visualized, however, there was no corresponding abnormality on the prior MRI. Otherwise, the remaining vertebral bodies appear unremarkable without evidence of a pars defect.
Degenerative disc disease most severe at L5-S1.