Syrinx in Art

Mar 14, 2017 by in NEUROSURGERY Comments Off on Syrinx in Art

Fig. 22.1 Pan and Syrinx, Bernard Salomon, 1552 (Herzog August Bibliothek Wolfenbüttel) The third scene, portrayed just to the right of the second, shifts the illustration into obliquely related realms….

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Developmental Anatomy

Mar 14, 2017 by in NEUROSURGERY Comments Off on Developmental Anatomy

Fig. 4.1 Gastrulation and primary neurulation Embryo stages from development of Hensen’s node on day 13 to closure of anterior neuropore on day 25 4.1.2 Primary Neurulation Further development of…

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Post-traumatic and Post-inflammatory Syringomyelia

Mar 14, 2017 by in NEUROSURGERY Comments Off on Post-traumatic and Post-inflammatory Syringomyelia

Fig. 11.1 Typical MR appearances of post-traumatic syringomyelia (Reproduced with kind permission of the Ann Conroy Trust) It is important to distinguish primary, post-traumatic cysts from true syringomyelia cavities. The…

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Hindbrain-Related Syringomyelia

Mar 14, 2017 by in NEUROSURGERY Comments Off on Hindbrain-Related Syringomyelia

Fig. 10.1 (a) Preoperative T2-weighted MRI of a patient with Chiari I malformation. The image demonstrates a small posterior fossa, a slight caudal displacement of the tentorial insertion (arrow) and…

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Historical Vignettes

Mar 14, 2017 by in NEUROSURGERY Comments Off on Historical Vignettes

Charles-Prosper Ollivier d’Angers 23.3 John Cleland John Cleland was born in 1835. He studied medicine in Edinburgh, becoming a doctor in 1856. He was appointed as Professor of Anatomy in…

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Paediatric Perspectives

Mar 14, 2017 by in NEUROSURGERY Comments Off on Paediatric Perspectives

Fig. 13.1 Sagittal T1-weighted MRI. Note the Chiari I malformation (long arrow) and cervical syrinx (short arrow) Fig. 13.2 Sagittal T2-weighted MRI. Note the Chiari I malformation (long arrow) and…

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Medicolegal Aspects

Mar 14, 2017 by in NEUROSURGERY Comments Off on Medicolegal Aspects

Fig. 19.1 MR image of a “cleft” or “spindle ”. This T2-weighted midline sagittal MRI of the cervical spine shows a typical cleft (long arrow) behind the body of C7….

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The Biochemistry of Syringomyelia

Mar 14, 2017 by in NEUROSURGERY Comments Off on The Biochemistry of Syringomyelia

  Plasma ECF/ISF ICF CSF Syrinxa Sodium (mM) 135–145 138–142 5–15 135–154 145–150 Potassium (mM) 3.4–4.7 3.8–5 135–155 2.6–3.1 2.6–2.8 pH 7.35–7.45 7.44  7.3–7.6  Chloride (mM) 99–108 118 9.0 115–130…

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Diagnostic Investigations

Mar 14, 2017 by in NEUROSURGERY Comments Off on Diagnostic Investigations

Fig. 9.1 Chiari 0 malformation and congenital atlanto-occipital fusion. T1-weighted midsagittal MRI in a 62-year-old woman with headache, dizziness and back pain (a) demonstrates that the cerebellar tonsils extend 4…

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The Filling Mechanism

Mar 14, 2017 by in NEUROSURGERY Comments Off on The Filling Mechanism

Fig. 6.1 Proposed syrinx filling mechanisms involving fluid flow from the fourth ventricle. Theory proposed by Gardner et al. (1957). (a) During systole, CSF is forced into the central canal….

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