المؤلفون: David S. Priemer, Daniel P. Perl

المصدر: Military Medicine. 187:938-940

مصطلحات موضوعية: Foramen magnum, business.industry, Traumatic brain injury, Skull, Public Health, Environmental and Occupational Health, Delayed onset, General Medicine, Anatomy, medicine.disease, medicine.anatomical_structure, Vietnam, Vietnam War, Brain Injuries, Traumatic, medicine, Humans, Crest, Foramen Magnum, Nervous System Diseases, business

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17e779be7054b4b219b559c5ddfc1fc1Test
https://doi.org/10.1093/milmed/usab376Test

المؤلفون: Jan K Herman, Frederick M. Burkle, Kevin S Hadley, Firas Kobeissy, Leah L Ridge

المصدر: Military Medicine. 187:e921-e925

مصطلحات موضوعية: medicine.medical_specialty, Foramen magnum, business.industry, Traumatic brain injury, Public Health, Environmental and Occupational Health, Delayed onset, General Medicine, medicine.disease, Occult, Skull, Physical medicine and rehabilitation, medicine.anatomical_structure, Vietnam War, Research studies, Medicine, Crest, business

الوصف: Introduction The diagnosis of traumatic brain injuries is typically based on hemispheric blasts resulting in degrees of unconsciousness and associated cerebral injuries. This case report describes a Vietnam War era setting in which a traumatic blast wave struck the posterior cranium in the region of the foramen magnum, occipital crest, and other skull openings (orbit, oronasal, and ear) and the unique secondary clinical signs and symptoms experienced over time. Materials and Methods This case report describes secondary delayed-onset clinical signs and symptoms consistent with progressive decades-long physical and functional complications. The traumatic blast resulted in brief unconsciousness, decreased vision in left eye, confusion, right sided hemotympanum, deafness, severe tinnitus, severe nasopharynx pain and difficulty swallowing, pain in right posterior and occipital area of the head, and loss of dental amalgams. Subsequent exams revealed progressive hyperacusis, sea sickness, dysdiadochokinesis, diagnosis of 9th and 10th cranial nerve traumatic schwannomas, hyperdense changes to the frontal lobe white matter, progressive tinnitus, chronic vertigo, right-sided high-frequency hearing loss, progressive oculo-gyric crisis of Tumarkin-like seizures, left-sided chronic vitreous hemorrhage, and diminished right hemisphere performance of the brain based on neurophysiological assessment. No post-traumatic stress, depression, or other emotional or psychiatric difficulties were claimed. Conclusion This case report, unique to the English language scientific literature, discusses in detail the secondary signs and symptoms of a foramen magnum and occipital crest focused-associated blast injury.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::9c7741afa3f88e038a78d2e1393e33aaTest
https://doi.org/10.1093/milmed/usab371Test

المؤلفون: Mustafa K. Baskaya, Nural Cafer Celik, Ulas Cikla, Halil Olgun Peker

المصدر: Journal of Surgical Case Reports

مصطلحات موضوعية: Oncology, medicine.medical_specialty, Foramen magnum, business.industry, Melanoma, Case Report, medicine.disease, Spinal cord, Metastasis, Meningioma, Thyroid carcinoma, 03 medical and health sciences, 0302 clinical medicine, medicine.anatomical_structure, 030220 oncology & carcinogenesis, Internal medicine, Pituitary carcinoma, medicine, Surgery, Radiology, Differential diagnosis, business, 030217 neurology & neurosurgery

الوصف: Intradural metastatic tumors are rarely reported in foramen magnum (FM), including cases of melanoma, pituitary carcinoma, thyroid carcinoma, and prostate carcinoma metastases. We report a 68-year-old male who presented with right-sided headache, progressive swallowing difficulty requiring gastrostomy tube and hoarseness over the course of 1 year. Images revealed a heterogeneous, contrast-enhancing lesion in the FM that compressed the anterior aspect of the medulla and upper spinal cord. Although metastatic tumor was considered in differential diagnosis, presumptive diagnosis was FM meningioma due to lack of bone destruction or sclerosis on CT and T2W isointense and T1W hypointense appearance on MRI. The patient underwent gross total resection via right far-lateral transcondylar approach. Histopathological examination revealed prostate carcinoma metastasis. To the best of our knowledge this is the second case report of an intradural prostate carcinoma metastasis in the FM.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fc63625f6f6b0e9e5f88cf32b352657Test
https://doi.org/10.1093/jscr/rjx185Test

المؤلفون: Gabriel Sampol, Juan Sahuquillo, Maria Dolores de la Calzada, Dulce Moncho, Maria A. Poca, Alex Ferré, Odile Romero

المصدر: Sleep. 40

مصطلحات موضوعية: Adult, Male, Pediatrics, medicine.medical_specialty, Polysomnography, 03 medical and health sciences, Age Distribution, Sleep Apnea Syndromes, 0302 clinical medicine, Risk Factors, Physiology (medical), Prevalence, medicine, Humans, Prospective Studies, Wakefulness, Prospective cohort study, Chiari malformation, Sex Characteristics, Foramen magnum, business.industry, Sleep apnea, Hypoventilation, Overweight, medicine.disease, Dyssomnias, Arnold-Chiari Malformation, Hydrocephalus, medicine.anatomical_structure, 030228 respiratory system, Female, Neurology (clinical), medicine.symptom, Sleep onset, Arousal, business, Hypopnea, 030217 neurology & neurosurgery

الوصف: Study objective The aim of the present study is to describe the prevalence of sleep disorders in a large group of patients with Chiari malformation type 1 (CM-1) and determine the presence of risk factors associated with these abnormalities. Methods Prospective study with consecutive patient selection. We included 90 adult patients with CM-1, defined by the presence of a cerebellar tonsillar descent (TD) ≥3 mm. Clinical, neuroradiological studies, and nocturnal polysomnography (PSG) was carried out. In addition, patients were also subclassified into 2 CM subtypes: CM-1, with the obex above the foramen magnum (FM) and CM-1.5, in which along with a TD ≥3 mm, the obex was located below the FM. Results We observed a high prevalence (50%) of sleep-related breathing disorders (SRBDs) with predominant hypopnea. Only six patients showed a central apnea index of ≥5. Hypoventilation was observed in only three patients. SRBD severity was associated with male sex, older age, excess weight, and the presence of hydrocephalus. No differences in clinical or PSG parameters were found when comparing CM subtypes (CM-1 and CM-1.5). Sleep architecture study showed decreased sleep efficiency with an increase in arousal and waking after sleep onset. The presence of SRBDs was found to be associated with poorer sleep architecture parameters. Conclusions This study confirms a high prevalence of SRBDs in patients with CM-1 and CM-1.5, with a predominant obstructive component. Nocturnal PSG recordings should be systematically conducted in these patients, especially those who are male, older, or overweight or those who present hydrocephalus.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37d779d45853ef8d518fcdd9b32416bfTest
https://doi.org/10.1093/sleep/zsx069Test

المؤلفون: J Wong, Richard J. Castriotta, S Jaggi, Ruckshanda Majid, Reeba Mathew

المصدر: Sleep. 41:A296-A296

مصطلحات موضوعية: Sleep related hypoventilation, Foramen magnum, medicine.medical_specialty, business.industry, Central alveolar hypoventilation, medicine.disease, Sleep in non-human animals, 03 medical and health sciences, 0302 clinical medicine, medicine.anatomical_structure, Sleep-related respiratory failure, 030228 respiratory system, 030225 pediatrics, Physiology (medical), Internal medicine, Cardiology, Medicine, Well child, Neurology (clinical), business, Chiari malformation

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::571a7b3a725a5747a10e976bffa2c39bTest
https://doi.org/10.1093/sleep/zsy061.795Test

المؤلفون: J Wong, Richard J. Castriotta, Reeba Mathew, S Jaggi, Ruckshanda Majid

المصدر: Sleep. 41:A180-A180

مصطلحات موضوعية: medicine.medical_specialty, Capnography, Foramen magnum, medicine.diagnostic_test, business.industry, Central alveolar hypoventilation, Polysomnography, medicine.disease, Hypoventilation, Obstructive sleep apnea, medicine.anatomical_structure, Physiology (medical), Internal medicine, medicine, Cardiology, Neurology (clinical), medicine.symptom, business, Chiari malformation

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::73359d1bd335ce3a42da9a472771c264Test
https://doi.org/10.1093/sleep/zsy061.476Test

المؤلفون: Sapna R. Kudchadkar, Steven P. Cohen, Sean M. Shockey, Scott R. Griffith, David N. Maine

المصدر: Pain Medicine. 9:688-694

مصطلحات موضوعية: Epidural Space, Male, medicine.medical_specialty, Radiography, medicine.medical_treatment, Injections, Epidural, medicine, Humans, Fluoroscopy, Foramen Magnum, Intervertebral Disc, Intervertebral foramen, Aged, Epidural steroid, medicine.diagnostic_test, business.industry, Epidural steroid injection, Disease Management, Magnetic resonance imaging, General Medicine, medicine.disease, Surgery, Analgesia, Epidural, Anesthesiology and Pain Medicine, medicine.anatomical_structure, Anesthesia, Discitis, Steroids, Neurology (clinical), Complication, business, Low Back Pain

الوصف: Objectives. To report two cases of disk injection during transforaminal epidural steroid injection, and to discuss ways to prevent and manage this under-appreciated complication. Design. Case reports and literature reviews. Patients. Two patients with radicular symptoms underwent transforaminal epidural steroid injections under fluoroscopic guidance. The needle in both cases was placed in the center of the intervertebral foramen, about 1 cm above the inferior endplate. Injection of contrast in both cases revealed diskographic spread. Repeat magnetic resonance imaging revealed a large foraminal disk herniation in both patients. Results. A literature search identified three studies whereby the use of a single-needle technique to perform diskography was clearly noted in conjunction with the number of infectious complications. Comparing these data with the incidence of diskitis when a double-needle approach was used found the infectious risk to be considerably higher. There are no data regarding whether imaging studies affect outcomes following epidural steroid injections. Conclusions. These cases and similar complications following transforaminal epidural steroid injections provide anecdotal evidence that recent imaging studies, repeated not only for qualitatively new symptoms but after a sustained quantitative increase in pain, may reduce the complication risk. Data extrapolated from studies on diskitis suggest that administering parenteral, and possibly also intradiskal antibiotics, immediately after inadvertent disk injection is appreciated, may reduce the infectious risk.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26e9346472b78b95e17993a8301f06dTest
https://doi.org/10.1111/j.1526-4637.2008.00478.xTest

المؤلفون: Jyrki Paavo Tapio Mäkelä

المصدر: Military Medicine. 171:174-176

مصطلحات موضوعية: Adult, Male, congenital, hereditary, and neonatal diseases and abnormalities, Pediatrics, medicine.medical_specialty, Ataxia, Military medicine, medicine, Humans, Personnel Selection, Finland, Retrospective Studies, Intracranial pressure, Foramen magnum, business.industry, Public Health, Environmental and Occupational Health, General Medicine, medicine.disease, Magnetic Resonance Imaging, Dysphagia, Trunk, Arnold-Chiari Malformation, nervous system diseases, Military Personnel, medicine.anatomical_structure, embryonic structures, Headaches, medicine.symptom, business, Congenital disorder

الوصف: Arnold-Chiari I malformation (Chiari I) is a congenital disorder characterized by caudal herniation of cerebellar tonsils through the foramen magnum. The symptoms and signs include headaches precipitated by coughing or exertion, dizziness, visual or oculomotor symptoms, dysphagia, trunk or extremity dysesthesias, ataxia, and drop attacks indicating cerebellar or cervical cord lesion. The symptoms may be provoked by increased intracranial pressure. The mean age of onset of symptoms is 25 years; consequently, previously unidentified Chiari I malformations occur in military personnel. Chiari I is associated with deaths following minor trauma, with acute respiratory failure, and with transient quadriparesis occurring in contact sports. Furthermore, Chiari I symptoms may be aggravated by chiropractic manipulation. This report describes symptoms and signs of Chiari I in four military conscripts in the Finnish Defense Forces. It is important to detect Chiari I in military personnel to establish appropriate service fitness and safety for these patients.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5db0c202f64c691da61293d265ce9133Test
https://doi.org/10.7205/milmed.171.2.174Test

المؤلفون: Seung Ho Yang, Young Il Kim, Sang Won Lee

المصدر: Neuro-Oncology. 17:v163.3-v163

مصطلحات موضوعية: Medulloblastoma, Cancer Research, medicine.medical_specialty, Weakness, Foramen magnum, Palsy, business.industry, medicine.disease, Surgical planning, Surgery, Meningioma, Text mining, medicine.anatomical_structure, Oncology, medicine, Neurology (clinical), Radiology, medicine.symptom, Olfactory Groove, business, Abstracts from the 20th Annual Scientific Meeting of the Society for Neuro-Oncology

الوصف: INTRODUCTION: Many techniques about planning for the surgery of intracranial brain tumors have been considered for getting more information about the relationship between tumors and adjacent vasculatures. Especially for the surgery of meningiomas, it is essential to distinguish passing arteries from feeders. It is also very important to preserve venous structures. Dual volume visualization is apt and powerful method to know about these vascular structures. METHODS: Between Feb. 2012 and Dec. 2014, a total of 20 patients underwent brain tumor surgery after undergoing dual volume visualization. The tumors comprised of 1 glioblastoma, 1 medulloblastoma, and 18 meningiomas. The locations of meningiomas were as follows : 6 parasagittal; 4 falx; 2 convexity; 1 tentorial; 1 foramen magnum; 2 sphenoid wing; 1 petroclival; and 1 olfactory groove. RESULTS: In cases involving glioblastoma and medulloblastoma, the boundary between the distinctive tumor mass of the intrinsic tumor and the normal brain is unclear, resulting in post-operative assessments showing greater direct damage done to the normal brain than that caused by vessel injury. Vascular supply and disfiguring observed in preoperative dual volume visualization images closely resembled the actual observations made during the surgery of meningiomas. Three out of eighteen meningioma cases demonstrated new deficits. One case exhibited tumor bed bleeding and perilesional edema leading to aggravation of motor weakness and deterioration. One exhibited venous infarction and a separate delayed hemorrhage leading to motor weakness and deterioration. One developed facial palsy. CONCLUSIONS: The advantages of this technique are as follows: 1. It enables the visualization of arteries and veins, individually; 2. the 3D rotation allows for convenient presurgical orientation; 3. it permits simulating craniotomies. This technique could reduce the incidence of newly developed neurological deficits as a result of identifying which veins to preserve during surgery and predicting the arteries that may shift.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6f2d5be702e9680953e1b9d27d1dc0bTest
https://doi.org/10.1093/neuonc/nov225.43Test

المؤلفون: William Gump

المصدر: Neuro-Oncology. 16:v128-v128

مصطلحات موضوعية: Cancer Research, Foramen magnum, Base of skull, business.industry, Brain tumor, Anatomy, Cerebellopontine angle, medicine.disease, Meningioma, Abstracts, Skull, medicine.anatomical_structure, Oncology, Cavernous sinus, otorhinolaryngologic diseases, medicine, Neurology (clinical), business, Orbit (anatomy)

الوصف: Pediatric skull base meningiomas are rare and complex clinical entities. Meningioma is a relatively uncommon brain tumor in children, and only about 27% involve the skull base. Some evidence suggests that these tumors are more likely to be atypical or malignant in children than adults. The absence of female preponderance in pediatric meningiomas is reflected in the skull base subpopulation. Skull base meningiomas in children are most likely to be found in the anterior or middle fossa base, or involving the orbit and optic nerve sheath. Petroclival, suprasellar/parasellar, cerebellopontine angle, cavernous sinus, and foramen magnum tumors are very rare. Meningiomas constitute a small proportion of reported cases of pediatric skull base pathology, and are entirely absent from many case series. Initial gross total resection is consistently associated with superior outcomes. Surgical approaches to the pediatric skull base must take additional factors into consideration including relatively smaller anatomy, immature dentition, incompletely aerated sinuses and air cells, and altered configurations of structures such as the pterional bony complex. Multidisciplinary expertise is essential to optimizing treatment outcomes.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53f4a988b285a4dea083ed0be15fcbbdTest
https://doi.org/10.1093/neuonc/nou260.6Test