المؤلفون: Mays El Dairi, MD

المساهمون: Mays El Dairi, MD

المصدر: 2022 North American Neuro-Ophthalmology Society Annual Meeting

مصطلحات موضوعية: Papilledema Superimposed on Optic Atrophy, Obstructive Hydrocephalus, Dilated Third Ventricle

الوصف: Obstructive hydrocephalus associated with dilated third ventricle can result in central scotoma and optic atrophy without papilledema or afferent pupillary defect early on.

وصف الملف: video/mp4

العلاقة: NANOS Annual Meeting 2022: Complex Cases in Pediatric Neuro-Ophthalmology: Avoiding Mimickers, Missteps, and Misdiagnosis; The NANOS Annual Meeting Neuro-Ophthalmology Collection: https://novel.utah.edu/collection/NAM/tocTest/; Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.eduTest; 20220217_nanos_complexcases1_06; https://collections.lib.utah.edu/ark:/87278/s6hrykgrTest

الإتاحة: https://collections.lib.utah.edu/ark:/87278/s6hrykgrTest

المؤلفون: Neda Ghassemi, Leah M Lamale-Smith, Michael E. Hahn, Sohini Khan, Mishella Perez, Victoria M. Fratto, Nikdokht Farid, Gladys A. Ramos, Yoona Ho, Eric Rupe, Dolores H. Pretorius, Katelyn Horton, Rebecca Rakow-Penner, Marilyn C. Jones

المصدر: Journal of Ultrasound in Medicine. 39:2389-2403

مصطلحات موضوعية: Corpus callosum, Ultrasonography, Prenatal, Corpus Callosum, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, Fetus, 0302 clinical medicine, Pregnancy, medicine, Humans, Dilated third ventricle, Radiology, Nuclear Medicine and imaging, Agenesis of the corpus callosum, Retrospective Studies, 030219 obstetrics & reproductive medicine, Radiological and Ultrasound Technology, medicine.diagnostic_test, business.industry, Ultrasound, Infant, Newborn, Magnetic resonance imaging, Anatomy, medicine.disease, Magnetic Resonance Imaging, medicine.anatomical_structure, Ventricle, Female, Septum Pellucidum, Agenesis of Corpus Callosum, business, Ventriculomegaly

الوصف: Objectives We hypothesized that: (1) fetal frontal horn (FH) morphology and their proximity to the cavum septi pellucidi (CSP) can assist in suspecting complete agenesis of the corpus callosum (cACC) and partial agenesis of the corpus callosum (pACC) earlier than known indirect ultrasound (US) findings; (2) FHs assist in differentiating a true CSP from a pseudocavum; and (3) magnetic resonance imaging (MRI) is useful in learning FH morphology and pseudocavum etiology. Methods Thirty-two patients with cACC and 9 with pACC were identified on an Institutional Review Board-approved retrospective review. Of the 41 cases, 40 had prenatal US, and 21 had prenatal MRI; 17 had follow-up neonatal US, and 14 had follow-up neonatal MRI. Variables evaluated retrospectively were the presence of a CSP or a pseudocavum, ventricle size and shape, and FH shape (comma, trident, parallel, golf club, enlarged, or fused). Displacement between the inferior edge of the FH and the midline or cavum/pseudocavum was measured. Results Fetal FHs had an abnormal shape in 77% ≤20 weeks' gestation, 86% ≤24 weeks, and 90% >24 weeks. Frontal horns were laterally displaced greater than 2 mm in 85% ≤20 weeks, 91% ≤24 weeks, and 95% >24 weeks. The CSP was absent in 100% of cACC cases and 78% of pACC cases, and a pseudocavum was present in 88% of cACC cases and 78% of pACC cases across gestation. Magnetic resonance imaging confirmed US pseudocavums to be focal interhemispheric fluid or an elevated/dilated third ventricle. Conclusions Frontal horns assist in assessing ACC ≤24 weeks and throughout gestation. Pseudocavums, often simulating CSPs, are common in ACC. Frontal horn lateral displacement and abnormal morphology, recognized by MRI correlations, are helpful in differentiating a pseudocavum from a true CSP. A normal CSP should not be cleared on screening US unless normally shaped FHs are seen directly adjacent to it.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb94f18ee43fbadd60801e08eb9bce66Test
https://doi.org/10.1002/jum.15348Test

المؤلفون: Touitou, Lehoang P, Boch Al

المصدر: Journal Français d'Ophtalmologie. 36:e15-e18

مصطلحات موضوعية: medicine.medical_specialty, business.industry, Compressive optic neuropathy, medicine.disease, nervous system diseases, Hydrocephalus, Congenital hydrocephalus, Ophthalmology, Internal medicine, Cardiology, Medicine, Dilated third ventricle, business, Intracranial pressure

الوصف: Clinical manifestations of hydrocephalus vary according to the level of intracranial pressure, the speed of onset, and the etiological mechanism involved. We report the case of a 32-year-old patient with isolated compressive optic neuropathy associated with a dilated third ventricle, revealing congenital hydrocephalus.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::a2c55932506e955c1093be08da633257Test
https://doi.org/10.1016/j.jfo.2012.02.013Test

المؤلفون: Kim Michael, Jody Berg, Brandy Sundberg

المصدر: Journal of Diagnostic Medical Sonography. 19:299-302

مصطلحات موضوعية: Pathology, medicine.medical_specialty, Fetus, Radiological and Ultrasound Technology, Miller–Dieker syndrome, business.industry, Lissencephaly, Anatomy, medicine.disease, Agenesis, medicine, Gestation, Dilated third ventricle, Radiology, Nuclear Medicine and imaging, business, Walker–Warburg syndrome

الوصف: Lissencephaly is a neural disorder characterized by lack of sulcations in the brain. In lissencephaly, the normal migration of the neuron does not occur due to an insult to the fetus early in gestation. This causes a “smooth brain” appearance. Lissencephaly is associated with syndromes such as Walker-Warburg and Miller-Dieker syndromes. Sonographic findings of lissencephaly include agenesis of the corpus collosum, dilated third ventricle, and lack of sulcations. Patients diagnosed with lissencephaly do not usually de-velop intellectually past the three- to five-month age level.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::5f83d7f19bcab70883c41b6a4732d508Test
https://doi.org/10.1177/8756479303256086Test

المؤلفون: Moise Danielpour, Paula Eboli

المصدر: Pediatric Neurosurgery. 47:292-294

مصطلحات موضوعية: Male, medicine.medical_specialty, Fourth ventricle, Ventriculostomy, medicine, Humans, Dilated third ventricle, Cyst, Third Ventricle, Choroid plexus cyst, Third ventricle, Cysts, business.industry, Endoscopic third ventriculostomy, General Medicine, medicine.disease, Surgery, Hydrocephalus, medicine.anatomical_structure, Child, Preschool, Acute Disease, Choroid Plexus, Pediatrics, Perinatology and Child Health, Choroid plexus, Neurology (clinical), business

الوصف: We present the case of a child in whom acute hydrocephalus developed secondary to obstruction of the foramen of Monro by a choroid plexus cyst. The patient was seen in the emergency department with fevers, acute onset of headaches, and lethargy. Computed tomography demonstrated dilated lateral and third ventricles with a relatively normal-sized fourth ventricle. An external ventricular drain was placed. Despite decompression of the lateral ventricles, follow-up magnetic resonance imaging demonstrated a dilated third ventricle with a possible thin-walled mass extending from the foramen of Monro into the posterior portion of the third ventricle. The patient subsequently underwent endoscopic fenestration of the cyst with endoscopic third ventriculostomy. Although two other cases of symptomatic choroid plexus cysts of the third ventricle have been previously reported in children, our paper highlights the possibility of endoscopic cyst fenestration together with a third ventriculostomy as a treatment option in cases where the cyst extends into the posterior third ventricle. Despite adequate decompression, we were concerned that due to CSF pulsations the remnant cyst wall could result in acute aqueduct obstruction and subsequent hydrocephalus.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bad0dd52e066aa2bf3836f8b3f53c95fTest
https://doi.org/10.1159/000336046Test

المؤلفون: Ravindra Kumar Garg, Maneesh Kumar Singh, Sunil Kumar Singh, Hardeep Singh Malhotra

المصدر: BMJ case reports. 2012

مصطلحات موضوعية: Male, Pathology, medicine.medical_specialty, Neurology, Thalamus, Tuberculous meningitis, Article, Young Adult, medicine, Dilated third ventricle, Humans, Third Ventricle, Third ventricle, Dyskinesias, business.industry, Brain, General Medicine, Anatomy, medicine.disease, Hydrocephalus, Arachnoid Cysts, medicine.anatomical_structure, Aqueductal stenosis, Head Movements, Tuberculosis, Meningeal, business, Tomography, X-Ray Computed, Meningitis

الوصف: The bobble-head doll syndrome is characterised by abnormal head movements. These head movements are usually 'yes-yes' (up and down) type; rarely, head movements are 'no-no' (side-to-side) type. Commonly described causes of the bobble-head doll syndrome include third ventricular tumours, suprasellar arachnoid cysts, aqueductal stenosis and other lesions in the region of the third ventricle of the brain. We report a case of tuberculous meningitis with hydrocephalus; in this patient bobble-head doll syndrome developed following external ventricular drainage. In our patient, placement of intraventricular drain led to massive dilatation of the frontal horn of the left lateral ventricle because of blocked foramina of Monro on the left side. The bobble-head doll syndrome, presumably, developed because of the pressure effect of the dilated third ventricle on the dorsomedial nucleus of the thalamus, red nucleus and dentatorubrothalamic pathways. We think that distortion of the third ventricle was responsible for the impairment of the functions of all these structures.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caeb58043e18e064a7731f79c412b80eTest
https://pubmed.ncbi.nlm.nih.gov/23035162Test

المؤلفون: Hideaki Iwasa, Shigeo Mori, Kazuko Fujimoto, Koichiro Kawashima, Toshio Masuzawa, Naoshi Yamada, Norikazu Kurokawa

المصدر: Neurologia medico-chirurgica. 31:490-497

مصطلحات موضوعية: Adult, Male, medicine.medical_specialty, Adolescent, Light, Urology, Eye, Pineal Gland, Melatonin, Normal pressure hydrocephalus, medicine, Humans, Dilated third ventricle, Circadian rhythm, Melatonin secretion, Cerebral Hemorrhage, Rupture, Spontaneous, business.industry, Intracranial Aneurysm, Radioimmunoassay, Venous blood, Middle Aged, medicine.disease, Cerebrospinal Fluid Shunts, Hydrocephalus, Normal Pressure, Circadian Rhythm, Anesthesia, Female, Surgery, Neurology (clinical), business, Cerebral aneurysm rupture, medicine.drug

الوصف: Melatonin (MLT) secretion was examined in six normal pressure hydrocephalus (NPH) patients before and after ventriculoperitoneal (VP) shunt surgery. Ten healthy subjects were used as controls. Venous blood samples were taken daily at 2 p.m., 8 p.m., 2 a.m., and 8 a.m. Radioimmunoassay of MLT used a new specific antiserum and separation method achieving low cross-reactivity and high-efficiency MLT separation. Plasma levels in the control group at 2 p.m. and 2 a.m. were significantly different, showing diurnal rhythm (DR). The patients' MLT levels before VP shunt were significantly lower than control levels and the DR was absent. Postoperatively, the values were significantly different from preoperative values only at 2 a.m., but the DR reappeared. Thus, in NPH, VP shunt surgery improved the melatonin DR, probably through normalization of the dilated third ventricle.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa43e4255a4be06f442df23a2632a06Test
https://doi.org/10.2176/nmc.31.490Test

المؤلفون: G. H. Tilve, Vijay V. Joshi, Abhijit Chaudhuri, Dilip R. Karnad

المصدر: British journal of neurosurgery. 6(4)

مصطلحات موضوعية: Adult, Male, Hypothalamus, Hypothermia, Tuberculous meningitis, Postoperative Complications, Medicine, Dilated third ventricle, Humans, Intracranial pressure, Third ventricle, business.industry, General Medicine, medicine.disease, Cerebrospinal Fluid Shunts, Hydrocephalus, medicine.anatomical_structure, Anesthesia, Tuberculosis, Meningeal, Surgery, Neurology (clinical), medicine.symptom, business, Complication, Meningitis

الوصف: We report two patients with tuberculous meningitis and hydrocephalus who developed hypothermia that reversed after inserting a ventricular shunt for the hydrocephalus. Pressure on the thermoregulatory centre in the posterior hypothalamus near the dilated third ventricle might have been responsible. One patient developed hypotension during the transient hypothermia, which persisted and proved fatal.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edc760a244245ed2c816d7c6ec87b6c0Test
https://pubmed.ncbi.nlm.nih.gov/1388836Test

المؤلفون: Elmo F. Masucci, John F. Kurtzke, Frederick T. Borts

المصدر: Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 14(3)

مصطلحات موضوعية: Adult, Male, Pathology, medicine.medical_specialty, Health Informatics, Midbrain, Atrophy, Huntington's disease, Cerebellum, medicine, Dilated third ventricle, Dementia, Humans, Radiology, Nuclear Medicine and imaging, Aged, Cerebral Cortex, Radiological and Ultrasound Technology, business.industry, Chorea, Middle Aged, medicine.disease, Computer Graphics and Computer-Aided Design, Huntington Disease, Female, Computer Vision and Pattern Recognition, Brainstem, medicine.symptom, Differential diagnosis, Caudate Nucleus, business, Tomography, X-Ray Computed, Brain Stem

الوصف: Thin-section computed tomographic (CT) scans of 1.5 mm thickness were obtained in the study of 44 consecutive patients with Huntington's disease (HD) and six patients with sporadic progressive chorea and dementia. Mild to moderate midbrain and pontine atrophy, a dilated third ventricle, and enlarged quadrigeminal plate cisterns were observed in most cases suggesting that brainstem atrophy is common in HD. Brainstem atrophy preceding caudate atrophy in two cases and pontine or midbrain atrophy to a similar degree as caudate atrophy in eight cases suggest that brainstem atrophy may occasionally precede or appear at the same time as caudate atrophy. The CT scan brainstem findings and their neuropathologic confirmation suggests a more important role for the brainstem in the pathophysiology of HD.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9d0da71083c003890abb05fede4745dTest
https://pubmed.ncbi.nlm.nih.gov/2140710Test

المؤلفون: R E Bertino, D R Cyr, David A. Nyberg, L A Mack

المصدر: Journal of Ultrasound in Medicine. 7:251-260

مصطلحات موضوعية: Fetus, Radiological and Ultrasound Technology, business.industry, Prenatal diagnosis, Anatomy, Trisomy 8, medicine.disease, Lateral ventricles, Pregnancy, In utero, Prenatal Diagnosis, medicine, Humans, Dilated third ventricle, Female, Radiology, Nuclear Medicine and imaging, Cystic mass, Agenesis of Corpus Callosum, business, Agenesis of the corpus callosum, Ultrasonography

الوصف: The prenatal sonographic findings in seven cases of agenesis of the corpus callosum (AGCC) are reported. Findings that suggest AGCC on standard transverse views of the fetal cranium are emphasized. All seven cases demonstrated ventricular abnormalities including four fetuses (57%) who demonstrated laterally displaced lateral ventricles and/or disproportionate enlargement of the occipital horns. Two additional fetuses demonstrated a large midline fluid collection, representing a dilated third ventricle. The remaining case demonstrated atypical findings of a septated periventricular cystic mass. Following birth, additional malformations were found in 5 of the 7 fetuses (71%), including one fetus with trisomy 8. We conclude that AGCC can be suggested on the basis of prenatal sonographic findings and that awareness of typical findings should permit more frequent detection of this anomaly in utero. Due to the frequency of concurrent anomalies, identification of AGCC should initiate a careful search for additional malformations.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1e2b137d0c855344275febe2dc647daTest
https://doi.org/10.7863/jum.1988.7.5.251Test