Herniacion del uncus pdf

Uncal herniation is a subtype of transtentorial downward brain herniation, usually related to cerebral mass effect increasing the intracranial pressure. A herniacao causa um sulco deixado pela borda livre da tenda, e pode comprimir o mesencefalo. As the uncus herniates it squeezes the third cranial nerve affecting the parasympathetic input to the eye causing and pupillary dilation and a lack of pupillary constriction to light. Hipertension intracraneal continua c hernia del uncus. Bilateral o central obliteracion las cisternas basales. With increasing pressure and progression of the hernia there will be distortion of the. Uncal herniation can be suggested on ct, however, mri is the gold standard. Hernias occurring in the inguinal triangle are considered direct inguinal hernias, whereas indirect hernias occur lateral to hesselbachs triangle lateral to the inferior epigastric vessels following a patent processus vaginalis. Herniacao do uncus causa compressao do trato corticoespinhal piramidal do mesencefalo. Clinical presentation pupils and globe clinical features 3 initially, an ipsilateral dilat. Hemiplegia alterna tipo weber produzida por hernia do uncus. Afec tacion del iii par midriasis unilateral al he misferio cerebral danado y hemiparesia por lo general contralateral al.