نتایج جستجو برای: chiari malformation type
تعداد نتایج: 1355793 فیلتر نتایج به سال:
Seven in a thousand children are born with multiple malformations:' many of them will have one of the thousand or so malformation syndromes that have been described in the published reports. All malformation syndromes are rare and it is unlikely that the average clinician, or even the experienced dysmorphologist, will be able to recall all of them and to keep up to date with new reports. Nevert...
Chiari disease (or malformation) is in general a congenital condition characterized by an anatomic defect of the base of the skull, in which the cerebellum and brain stem herniate through the foramen magnum into the cervical spinal canal. The onset of Chiari syndrome symptoms usually occurs in the second or third decade (age 25 to 45 years). Symptoms may vary between periods of exacerbation and...
Chiari malformation type I and Poland's syndrome are two rare diseases and their simultaneous presentation had not been previously described in the literature. We report the case of a 27 year old male with history of Poland's syndrome, who referred headache and motor impairment of the intrinsic muscles of the left hand. In a cervical spine MR a Chiari I malformation with syringomyelia from C1 t...
STUDY DESIGN This is a cross-sectional analysis of resonance magnetic images of 111 patients with craniocervical malformations and those of normal subjects. OBJECTIVE To test the hypothesis that atlas assimilation is associated with basilar invagination (BI) and atlas's anterior arch assimilation is associated with craniocervical instability and type I BI. SUMMARY OF BACKGROUND DATA Atlas a...
Chiari I malformation may not be congenital, but may be acquired as a consequence of skull deformities and other associated intracranial factors in patients with craniosynostosis. Pfeiffer syndrome is one of the many conditions associated with Chiari I malformation. Premature fusion of multiple cranial sutures and cloverleaf skull (kleeblattschädel deformity) are often observed in the calvaria ...
Background The aim of our study was to evaluate the feasibility of 4D phase contrast (PC) flow imaging for visualisation and analysis of cerebrospinal fluid (CSF) flow in Chiari I malformation. CSF flow was compared between healthy volunteers and patients with Chiari I malformation with and without syringomyelia. Moreover, the effect of a craniocervical decompression on CSF flow was studied in ...
While Chiari I malformation is a relatively common finding on MRI imaging, the vast majority of patients are asymptomatic and those who do present typically follow a slow course of chronic or subacute progression of symptoms. Emergent deterioration of existing Chiari malformation is rare. We present two patients with previously undiagnosed Chiari I malformation presenting with acute deteriorati...
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