transtentorial herniation

transtentorial herniation
protrusion of brain structures through the tentorial notch; the two types are descending transtentorial h. and ascending transtentorial h. Called also tentorial h.

Medical dictionary. 2011.

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  • descending transtentorial herniation — the most common kind of transtentorial herniation, with downward displacement of the most medially placed cerebral structures through the tentorial notch, compressing parts of the cerebrum and structures beneath the notch; it is caused by a… …   Medical dictionary

  • ascending transtentorial herniation — a rare kind of transtentorial herniation in which part of the cerebellum protrudes upward through the tentorial notch. Symptoms may include nausea, vomiting, and eventually coma …   Medical dictionary

  • caudal transtentorial herniation — descending transtentorial h …   Medical dictionary

  • rostral transtentorial herniation — ascending transtentorial h …   Medical dictionary

  • Herniation — Abnormal protrusion of tissue through an opening. For example, a intervertebral disk (one situated between the vertebral bodies) can protrude and impinge on a nerve root. * * * Protrusion of an anatomic structure ( e.g., intervertebral disk) from …   Medical dictionary

  • Brain herniation — Classification and external resources MRI showing injury due to brain herniation ICD 10 G …   Wikipedia

  • uncal herniation — n downward displacement of the uncus and adjacent structures into the tentorial notch * * * descending transtentorial herniation in which the uncus protrudes through the notch …   Medical dictionary

  • central herniation — descending transtentorial herniation with downward shift of the brainstem and diencephalon, causing Cheyne Stokes respirations with pinpoint nonreactive pupils …   Medical dictionary

  • tentorial herniation — transtentorial h …   Medical dictionary

  • Duret haemorrhage — Brainstem Duret haemorrhages are small areas of bleeding in the ventral and paramedian parts of the upper brainstem, (midbrain and pons). [1] It is named for Henri Duret …   Wikipedia

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