Reason: hx seroma post drainage with recurrence. Eval size and location of seroma History: back pain There is a large fluid collection containing fluid levels in the dorsal subcutaneous fat at the L3-L5 level measuring 7.8 x 7.6 x 9.6 cm which extends from the paraspinal muscular fascia to the skin. This most likely represents a postoperative seroma and was not present on the exam from 1/31/2015.Alignment is anatomic. Vertebral body heights are intact. There is disc desiccation at L4-L5 and L5-S1. Marrow signal is normal normal signal and the distal cord and conus which ends at L1-L2. Postsurgical changes of left L4-L5 hemilaminectomy. T12-L1: No significant disc disease. No spinal canal or neural foraminal stenosis.L1-L2: No significant disc disease. No spinal canal or neural foraminal stenosis.L2-L3: No significant disc disease. Mild facet arthropathy and ligamentum flavum thickening. No spinal canal or neural foraminal stenosis.L3-L4: Right neural foraminal disc protrusion causing moderate to severe neural foraminal narrowing. Mild facet arthropathy and ligamentum flavum thickening. No spinal canal stenosisL4-L5: Large central disc protrusion causing mild to moderate spinal canal narrowing, improved from the prior exam. Mild facet arthropathy and ligamentum flavum thickening. Mild bilateral neural foraminal stenosis.L5-S1: Large central disc protrusion causing moderate spinal canal narrowing, unchanged. Mild facet arthropathy and ligamentum flavum thickening. Mild bilateral neural foraminal stenosis, left greater than right.
1.Large chronic hematoma/seroma in the dorsal subcutaneous tissues measuring 7.8 x 7.6 x 9.6 cm.2.Right neural foraminal protrusion at L3-L4 causing moderate to severe neural foraminal narrowing.3.Postsurgical changes of left L4-L5 hemilaminectomy with persistent large central protrusion and interval improvement in mild to moderate spinal canal narrowing4.Large central protrusion at L5-S1 with moderate spinal canal narrowing, unchanged.