Cranial fossa posterior. Medical search. FAQ

small posterior fossa
Genetic analysis of the genomic DNA will be performed with DNA polymorphic markers to identify chromosomal loci linked to the small posterior fossa phenotype. (clinicaltrials.gov)

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)

depression
The middle cranial fossa is a butterfly-shaped depression of the skull base, which is narrow in the middle and wider laterally. (radiopaedia.org)

lateral
The middle cranial fossa can be divided into medial and lateral parts. (radiopaedia.org)

small posterior crani
No special clinical presentation was associated with a very small posterior cranial fossa, which may indicate that a small posterior cranial fossa per se has little or no clinical significance, although it may be the primary developmental anomaly. (springer.com)
It has been hypothesized that tonsillar ectopy, a typical finding in CMI, is the result of elevated intracranial pressure (ICP) combined with a developmentally small posterior cranial fossa (PCF). (thejns.org)

children with posterior fossa tumors
The importance of MR imaging for the diagnosis of leptomeningeal metastasis in children with posterior fossa tumors, critical for risk stratification and treatment, 1 is well-recognized. (ajnr.org)
Fritsch MJ, Doerner L, Kienke S, Mehdorn HM (2005) Hydrocephalus in children with posterior fossa tumors: role of endoscopic third ventriculostomy. (springer.com)

cerebellar
In the patients, there was a positive correlation between posterior fossa size and the degree of the cerebellar ectopia, which might indicate that a posterior cranial fossa which was originally too small had been expanded by the herniation of hindbrain structures at an early stage. (springer.com)
Pyramidal signs and cerebellar symptoms and signs, which may be due to compression of neural structures, were associated with a large degree of ectopia and a relatively large posterior cranial fossa. (springer.com)
Syringomyelia and headache, which may be due to the valve action of the herniated cerebellar tissue, were not associated with a particularly large posterior fossa or herniation. (springer.com)
Posterolaterally to the foramen magnum lies the cerebellar fossae . (teachmeanatomy.info)
We tested the hypothesis that different etiologies have different mechanisms of cerebellar tonsil herniation (CTH), as revealed by posterior cranial fossa (PCF) morphology. (springer.com)

tumours in children
Wanyoike PK (2004) Posterior cranial fossa tumours in children at Kenyatta National Hospital, Nairobi. (springer.com)
Overall 50-55% of all brain tumours in children are found in the posterior fossa. (operativeneurosurgery.com)

Skull
What are the three fossae of the floor of the skull? (brainscape.com)

lesions
Causes include hydrocephalus, space occupying lesions, and a malformed posterior cranial fossa. (teachmeanatomy.info)
Clinical data of 36 patients with posterior fossa lesions who accepted neuroendoscopy assisted microneurosurgery (NEAM group) in the department of neurosurgery of the First Affiliated Hospital of Chongqing Medical University, from January 2014 to December 2016, were retrospectively enrolled. (operativeneurosurgery.com)
In all seven cases operated on, the lesions were excluded without inflicting any additional damage to the third through sixth cranial nerves, and in five cases carotid patency was preserved. (thejns.org)

tumors
Retrospective review of postoperative spine MRI in 243 children (5.5 ± 4.6 years of age) from our clinical data base postresection of posterior fossa tumors from October 1994 to August 2010 yielded 37 (6.0 ± 4.8 years of age) subjects positive for postoperative intraspinal subdural collections. (ajnr.org)
Fifty-two of 243 adult patients with posterior fossa tumors presented with hydrocephalus at the time of admission prior to tumor surgery. (springer.com)
Di Rocco F, Juca CE, Zerah M, Sainte-Rose C (2013) Endoscopic third ventriculostomy and posterior fossa tumors. (springer.com)

nerve
Nerve compression syndromes in the posterior cranial fossa can severely impair patients quality of life. (aerzteblatt.de)
Nerve compression syndromes in the posterior cranial fossa can generally be treated nonsurgically at first. (aerzteblatt.de)
A literature search was carried out in PubMed with the following search terms: neurovascular compression syndrome, cranial neuralgia, trigeminal neuralgia, hemifacial spasm, glossopharyngeal neuralgia, vestibular nerve compression, vestibular paroxysmia, intermedius neuralgia and microvascular decompression. (aerzteblatt.de)
Whenever a nerve compression syndrome is suspected, magnetic resonance imaging (MRI) of the brain should be performed, with particular attention to the posterior fossa. (aerzteblatt.de)
There are several bony landmarks and foramina present in the posterior cranial fossa (a foramen is simply a hole that allows the passage of a structure - usually a blood vessel or nerve). (teachmeanatomy.info)
It transmits the medulla of the brain, meninges, vertebral arteries, spinal accessory nerve (ascending), dural veins and anterior and posterior spinal arteries. (teachmeanatomy.info)
The supraorbital nerve is a branch of the frontal nerve arising from the ophthalmic division of the trigeminal nerve (cranial nerve V). The foramen sits on the inmost, lower margin of a grove splitting the supraorbital ridge into a central and two distal sections. (wikipedia.org)
He has residual cranial nerve palsies on the right side and experiences tremors, ataxia and disequilibrium. (nottingham.ac.uk)
The _____________ (a motor nerve) traverses the occipital triangle, a subdivision of the posterior triangle of the neck. (brainscape.com)
Both acute and subacute SDH may cause increased intracranial pressure, with symptoms of emesis, speech disturbances, papilledema, cranial nerve abnormalities, or seizure. (clinicaladvisor.com)
Cranial neuralgiasare head and facial pain disorders that are short in duration but have severe pain in an anatomic distribution of the affected cranial nerve. (renalandurologynews.com)

dura mater
The cranial dura mater is continuous through the foramen magnum (15) with that which covers the spinal cord. (stanford.edu)
The floor of the fossa is the largest and deepest depression of the inner surface of the base of the brain, and is covered by dura mater. (thefreedictionary.com)

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)

anterior
They are known as the anterior cranial fossa , middle cranial fossa and posterior cranial fossa. (teachmeanatomy.info)
Surgery on anterior foramen magnum meningiomas using a conventional posterior suboccipital approach: a report on an experience with 17 cases. (nih.gov)

PCFV
The cranial volume measurements (VV, PCFV, and ICV) of the CMI and IIH patients were similar. (thejns.org)

tumor resection
Postoperative intraspinal subdural collections in children after posterior fossa tumor resection may temporarily hinder metastasis detection by MR imaging or CSF analysis, potentially impacting therapy. (ajnr.org)
We investigated the incidence, imaging and clinical features, predisposing factors, and time course of these collections after posterior fossa tumor resection. (ajnr.org)
5 ⇓ ⇓ - 8 These findings were further investigated in a larger series by Warmuth-Metz et al, 9 who described such findings in children after posterior fossa (7/45) but not supratentorial (0/8) tumor resection. (ajnr.org)

intraspinal
The TEW Cranial/Spinal Retractor is designed for posterior fossa or intraspinal microsurgery where retraction is required. (bio-medicine.org)

cerebellum
The cerebellum is located in the posterior cranial fossa . (wikipedia.org)

resection
Resection can be undertaken for posterior fossa meningiomas, but residual or recurrent tumor is frequent. (thejns.org)

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)

meningioma
Posterior fossa meningioma "our experience" in 64 cases. (nih.gov)
At 7 medical centers participating in the North American Gamma Knife Consortium, 675 patients undergoing SRS for a posterior fossa meningioma were identified, and clinical and radiological data were obtained for these cases. (thejns.org)

internal
The internal acoustic meatus is an oval opening in the posterior aspect of the petrous part of the temporal bone. (teachmeanatomy.info)
Results: Ninety-three patients with acoustic neuroma were analyzed, which were divided into non-NEAM group 78 cases (removed posterior lip of internal auditory canal in different degrees) and NEAM group 15 cases (not removed posterior lip of internal auditory canal). (operativeneurosurgery.com)
Recent meticulous microsurgical studies of the CS have disclosed in detail the topographic anatomy of the internal carotid artery (ICA) and the third, fourth, fifth, and sixth cranial nerves as they course through the CS. (thejns.org)

Chiari
Nyland H, Krogness KG (1978) Size of posterior fossa in Chiari type I malformation. (springer.com)

foramina
Fig 1.1 - The bony landmarks and foramina of the posterior cranial fossa. (teachmeanatomy.info)

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)

syndrome
Trigeminal neuralgia is the most common neurovascular compression syndrome in the posterior fossa, with an incidence of 4 5 cases per 100 000 persons per year (among persons over age 60: up to 20 per 100 000 persons per year ) ( 3 , 4 ). (aerzteblatt.de)
see Posterior fossa syndrome . (operativeneurosurgery.com)

basal
Meningiomas of the basal posterior fossa. (nih.gov)

patients
The posterior cranial fossa was significantly smaller and shallower in patients than in controls. (springer.com)
A total of 31 paediatric patients with a posterior cranial fossa brain tumour were identified over the study period. (springer.com)
Stereotactic radiosurgery affords a high rate of tumor control and neurological preservation for patients with posterior fossa meningiomas. (thejns.org)
In contrast, patients presenting with an overcrowded posterior cranial fossa, a key characteristic of the disease, may remain misdiagnosed if they have little or no TH. (thejns.org)

retrospective study
A retrospective study of children diagnosed with posterior cranial fossa tumours and treated between January 1998 and December 2015 at National Cancer Institute, Sudan. (springer.com)

measurements
Krogness KG (1978) Posterior fossa measurements. (springer.com)

brain tumours
Posterior cranial fossa tumours (PCF) comprise 54-70% of childhood brain tumours. (springer.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)

middle
Name the foramen of the middle cranial fossa? (brainscape.com)

clinical features
O'Brien DF, Caird J, Kennedy M, Roberts GA, Marks JC, Allcutt DA (2001) Posterior fossa tumours in childhood: evaluation of presenting clinical features. (springer.com)

surgical
Posterior fossa meningiomas: surgical experience in 161 cases. (nih.gov)
The evolution of surgical approaches for posterior fossa meningiomas. (nih.gov)

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)