Chiari malformation with syrinx, yearly follow up and history of craniosynostosis repair. Brain: The cerebellar tonsils are peg-shaped and extend approximately up to 4 mm inferior to the foramen magnum. There is a dysmorphic and hypoplastic clivus with mild platybasia and small posterior fossa. There is intact cerebrospinal fluid flow is present across the anterior and posterior portions of the foramen magnum. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchymal signal appears unremarkable. There is unchanged prominence of the bilateral Meckel's caves. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift. There is scattered paranasal sinus mucosal thickening. There are postoperative findings related to craniofacial reconstruction for bicoronal synostosis.Cervical Spine: There is no significant interval change in size of the syringohydromyelia at C5 through T1, which measures up to 4 mm in width. 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 paravertebral soft tissues are unremarkable.
1. Dysmorphic craniocervical junction associated with Chiari 1 malformation.2. No significant interval change in size of the cervicothoracic syrinx.3. Postoperative findings related to craniofacial reconstruction for bicoronal synostosis.