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  • malformation
  • Objectives: The goal of this study is to establish family pedigrees and undertake genetic linkage analysis that will identify gene loci associated with the Chiari I malformation and underdevelopment of the bone forming the posterior cranial fossa. (clinicaltrials.gov)
  • Design: Human subjects will undergo 1) neurologic examinations, 2) head and cervical MRI scans to evaluate for the Chiari I malformation, syringomyelia, and maldevelopment of the posterior fossa, and 3) isolation and analysis of genomic DNA from whole blood for linkage analysis. (clinicaltrials.gov)
  • cyst
  • A 4-month-old boy presented with increasing head circumference and a rapidly enlarging arachnoid cyst in the left posterior fossa with ventriculomegaly, which was documented using serial imaging over the preceding 2 months. (surgicalneurologyint.com)
  • The management of posterior fossa arachnoid cyst (PFAC) in adults is controversial. (nih.gov)
  • The clinical features, location of the cyst within the posterior cranial fossa, surgical procedure performed the complications that occurred following surgical intervention and the long term outcome of all the 7 cases of PFAC has been summarized and presented in Table 1. (nih.gov)
  • The current recommended method of treatment is complete excision of a spinal neurenteric cyst through a posterior or posterolateral approach. (springer.com)
  • Methods
  • Fifteen morphometric measurements of the posterior cranial fossa were performed on midsagittal T1-weighted MR images obtained in 195 adult patients diagnosed with CM. Seven different machine-learning classification methods were applied to images from 117 patients with classic CM-I and 50 controls matched by age and sex to identify the best classifiers discriminating the 2 cohorts with the minimum number of parameters. (thejns.org)
  • mandibular
  • The articular disc is positioned directly __________ to the mandibular fossa of the temporal bone and directly __________ to the head of the mandible. (brainscape.com)
  • cysts
  • Arachnoid cysts of the posterior fossa (PFACs) are very rare in infants and do not typically grow or present with clinical symptoms, such that surgical treatment is generally considered to be unnecessary. (surgicalneurologyint.com)
  • In adults, the majority of intracranial arachnoid cysts arise in the supratentorial region (90%), with the middle cranial fossa being the most common site (60%) of origin and 10-20% of arachnoid cysts occurring in the posterior fossa. (surgicalneurologyint.com)
  • recently reported that cysts in infants can occasionally enlarge (16.2%), but that arachnoid cysts of the posterior fossa (PFACs) have an extremely low prevalence of enlargement in infant cases (2.3%)[ 13 ] and are generally asymptomatic such that they do not require treatment. (surgicalneurologyint.com)
  • Posterior fossa arachnoid cysts in adults: Surgical strategy: Case series. (nih.gov)
  • Neurenteric cysts of the posterior fossa: recognition, management, and embryogenesis. (springer.com)
  • Endodermal cysts of the posterior fossa: report of three cases and review of the literature. (springer.com)
  • approach
  • Conventional posterior fossa approach for surgery on petroclival meningiomas: a report on an experience with 28 cases. (nih.gov)
  • Stereotactic radiosurgery (SRS) has been used to treat meningiomas, and this study evaluates the outcome of this approach for those located in the posterior fossa. (thejns.org)