Compression of brain [G93.5] / Syringomyelia and syringobulbia [G95.0], Reason for Study: ^Reason: Chiari malformation decompression with syrinx, 6 month follow up History: 6 month follow up Fluid collection on the suboccipital craniectomy site has been decreased in size since prior scan (AP:22mm, RL:19mm, CC:35.4mm).Syrinx cavity is seen from the level of C34 to T4 level. Prominent segment of the cavity were seen at the level of C5 (AP:2mm x RL:4mm) and C67 level (AP:2.7mm x RL:3.4mm)There is vertebral body hemangioma at the level of T8, no change since prior scan.There is normal cervical lordosis. The cranial-cervical junction is normal. There is normal thoracic kyphosis and lumbar lordosis. The spine alignment is anatomic. The vertebral body height is preserved. The bone marrow and end plates demonstrate a normal MR appearance. The remained cord signal is normal. The conus medullaris terminates at the level of L1-2.
1. Interval decreased size of suboccipital craniectomy site fluid collection.2. Cervico thoracic syrinx is again seen, no change since prior scan in its extent.