18 years old male patient with a L5-S1 left lateral recess soft tissue mass please evaluated for biopsy and perform CT guided biopsy. Serial CT images obtained during the biopsy procedure demonstrate the needle placement within the mass within the left lateral recess of the spinal canal. Following needle removal images obtained that demonstrate no complications .
L5-S1 level biopsy of mass within the spinal canal at the left lateral recess. Seven samples were obtained and delivered to pathology.