The Arnold-Chiari malformation is a congenital abnormality of CNS, characterized by downward displacement the parts of the cerebellum, fourth ventricle, pons and medulla oblongata into the spinal canal. This malformation is one of causative factor of death in neonates and infants. A thorough understanding of the direct and indirect sonographic findings is necessary for diagnosis of Chiari II ma...

the arnold-chiari malformation is a congenital abnormality of cns, characterized by downward displacement the parts of the cerebellum, fourth ventricle, pons and medulla oblongata into the spinal canal. this malformation is one of causative factor of death in neonates and infants. a thorough understanding of the direct and indirect sonographic findings is necessary for diagnosis of chiari ii ma...

REFERENCES 1. Teo C, Nakaji P, Serisier D, et al. Resolution of trigeminal neuralgia following third ventriculostomy for hydrocephalus associated with Chiari I malformation: case report. Minim Invasive Neurosurg 2005;48:302e5. 2. Caranci G, Mercurio A, Altieri M, et al. Trigeminal neuralgia as the sole manifestation of an Arnold-Chiari type I malformation: case report. Headache 2008;48:625e7. 3...

Acute delirium can occur in a variety of states including migraine, l head trauma,2 nonconvulsive status epilepticus,3 and cerebral infarction.4 Acute delirium accompanied by migrainous headache is much more common in children than adults and is termed acute confusional migraine.s In 1883 John Cleland, a British poet and anatomist, first described the abnormality of the brainstem and cerebellum...

OBJECTIVE To evaluate the frequency and degree of severity of abnormalities in the auditory pathways in patients with Chiari malformations type I and II. METHOD This is a series-of-case descriptive study in which the possible presence of auditory pathways abnormalities in 75 patients (48 children and 27 adults) with Chiari malformation types I and II were analyzed by means of auditory evoked ...

A small percentage of individuals have the neurological anomaly of central precocious puberty (CPP). Common neurologic causes of CPP include a tumor or congenital lesions. Although Arnold-Chiari malformation can be caused by congenital or acquired causes, it is unusual in patients with CPP. We present the case of a girl aged 4.5 years who complained of breast budding. Her neurological examinati...

Anesthetic management of laboring parturients with Arnold-Chiari type I malformation poses a difficult challenge for the anesthesiologist. The increase in intracranial pressure during uterine contractions, coughing, valsalva maneuvers, and expulsion of the fetus can be detrimental to the mother during the process of labor and delivery. No concrete evidence has implicated high cerebral spinal fl...

The Arnold-Chiari type I malformation has many symptoms such as headache, neck pain, gait impairment, abnormal movements or postures. But a few cases reported association of specific symptom including headache, neck pain, vertigo or ataxia. We report a case of 12 year-old boy presenting with tip-toe gait. Magnetic resonance imaging (MRI) study of brain and spine revealed underlying Arnold-Chiar...

Syncope precipitated by sneezing in an adult male associated with an Arnold-Chiari type I malformation and basilar invagination presents a clinical problem in the differential diagnosis and pathological anatomy of Valsalva-related syncope. An abnormally acute clivoaxial angle, small foramen magnum, and type I Arnold-Chiari malformation appear to be a combination of features intolerant of Valsa...