Tectal breaking is seen in –
Correct Answer: Arnold-chiari malformation
Description: Arnold Chiari malformation :
It is herniation of tonsils of cerebellum and medulla oblongata through Foramen magnum into vertebral canal. This results in blockage of exits in the roof of the fourth ventricle (foramen of Magendie & Luschka) causing hydrocephalus. Schwartz mentions that —
"there is a dorsal kink in the cervicomedullary junction and breaking of the Quadrigeminal plate."
The quadrigeminal plate is the dorsal part of the midbrain and its another name is Tectum.
Category:
Pathology
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