This volume covers the known details of all subtypes of occult spinal dysraphism in unprecedented detail.  This 21 chapter invaluable resource begins with a deep dive into the history and embryology of occult spinal dysraphisms. Following this, subtypes of occult spinal dysraphism are thoroughly explored - of which include split cord malformations, tethered cord syndromes, adult presentations/outcomes of occult spinal dysraphism, cutaneous stigmata. Chapters will cover the clinical presentation, radiological features, and surgical nuances of each of the occult spinal dysraphisms. Throughout the book, expertly written text is supplemented by a number of high quality figures and tables, as well as a video documenting surgical treatment of type 1 split cord malformation.

Chapter 1. Historical Perspective of Occult Spinal Dysraphism.-Chapter 2. Embryology of Occult Spinal Dysraphisms.-Chapter 3. Natural History of Occult Spinal Dysraphism.-Chapter 4. Cutaneous Stigmata and the Occult Spinal Dysraphisms.-Chapter 5. The Filum Terminale.-Chapter 6. Clinical Presentations of the Occult Spinal Dysraphisms.-Chapter 7. Adult Presentations/Outcomes of Occult Spinal Dysraphism.-Chapter 8. The Tethered Cord Syndrome and its Occult Form.-Chapter 9. Dermal Sinus Tracts.-Chapter 10. Spinal Neurenteric Cysts.-Chapter 11.  Lipomyelomeningoceles.-Chapter 12. Split Cord Malformations.-Chapter 13. Meningocele Manqué.-Chapter 14. Terminal Syringomyelia and Occult Spinal Dysraphism.-Chapter 15. Imaging of Occult Spinal Dysraphism.-Krista Greenan, David Mirsky, Todd C. Hankinson .-Chapter 16. Urological Concerns of Occult Spinal Dysraphism/Tethered Cord.-Chapter 17. Interface Between Occult Spinal Dysraphisms and Myelomeningoceles.-Chapter 18. Associations ofthe Occult Spinal Dysraphisms.-Chapter 19. Complications of the Occult Spinal Dysraphisms.-Chapter 20. Outcomes in Occult Spinal Dysraphism.-Chapter 21. Genetics and Developmental Biology of Closed Dysraphic Conditions.-