Presentation
Low back pain
Patient Data
Age: 30 years
Gender: Female
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Unfused right transverse process of L1 vertebra.
Undisplaced fracture pars interarticularis of L5 (spondylolysis) with no associated spondylolisthesis.
Case Discussion
Unfused transverse process ossification center is a smooth well corticated and normally aligned lateral part of a vertebral process that failed to fuse to the proximal part of the transverse process. It is usually an asymptomatic incidental finding and must be carefully differentiated from transverse process fracture in setting of spinal trauma 1.