Local superficial swelling, mass in the mid lumbar region. History of traumatic hematoma. There is a lentiform fluid collection measuring up to approximately 6 cm in length within the midline subcutaneous tissues of the lower lumbar spine at the level of L5 to S1. There is thick, but smooth, enhancement surrounding the collection and partial septations within the collection. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The spinal cord displays normal signal and morphology.
A fluid collection within the subcutaneous tissues of the lower lumbar spine at the level of L5 to S1 that measures up to 6 cm in length likely represents a chronic hematic cyst or hematoma.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.