Obstructive hydrocephalus caused by an abnormal vein in the aqueduct

1991 ◽  
Vol 75 (6) ◽  
pp. 960-962 ◽  
Author(s):  
Akira Watanabe ◽  
Ryoji Ishii ◽  
Masaki Kamada ◽  
Yasuo Suzuki ◽  
Kazuhiro Hirano ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Ventriculoperitoneal Shunt ◽  
Obstructive Hydrocephalus ◽  
Aqueductal Stenosis ◽  
Resonance Imaging ◽  
Content Type ◽  
Fine Print

✓ A case is reported of aqueductal stenosis caused by an abnormal draining vein and demonstrated by computerized tomography and magnetic resonance imaging. Placement of a ventriculoperitoneal shunt relieved the patient's progressive headaches.

Intracranial chondroma in a patient with Ollier's disease

1989 ◽  
Vol 70 (2) ◽  
pp. 274-276 ◽  
Author(s):  
Robert F. Traflet ◽  
Ashok R. Babaria ◽  
Giancarlo Barolat ◽  
H. T. Doan ◽  
Carlos Gonzalez ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Diagnostic Value ◽  
Resonance Imaging ◽  
Content Type ◽  
Ollier’S Disease ◽  
Intracranial Chondroma ◽  
Ollier's Disease ◽  
Fine Print

✓ A case is presented in which a solitary chondroma arose from the clivus of a patient with Ollier's disease. These tumors are rare. The diagnostic value of computerized tomography and magnetic resonance imaging is discussed.

Ossification of the posterior atlantoaxial membrane

2003 ◽  
Vol 98 (1) ◽  
pp. 77-79 ◽  
Author(s):  
Katsumi Harimaya ◽  
Keiichiro Shiba ◽  
Hiroshi Nomura ◽  
Toru Iwaki ◽  
Yoshiharu Takemitsu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Cervical Myelopathy ◽  
Resonance Imaging ◽  
Decompressive Laminectomy ◽  
Content Type ◽  
Fine Print

✓ The authors report a case of ossification of the posterior atlantoaxial membrane that led to the development of cervical myelopathy. Computerized tomography and magnetic resonance imaging were helpful in establishing the diagnosis, and decompressive laminectomy may be an appropriate intervention.

Spinal intramedullary spread of medulloblastoma

1986 ◽  
Vol 65 (2) ◽  
pp. 253-255 ◽  
Author(s):  
Stanley L. Barnwell ◽  
Michael S. B. Edwards
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Posterior Fossa ◽  
Diagnostic Information ◽  
Resonance Imaging ◽  
Content Type ◽  
Fine Print

✓ The case of an 11-year-old boy is reported in whom two intramedullary lesions developed at the thoracic-cervical and thoracic-lumbar junctions 2½ years after resection and irradiation of a medulloblastoma in the posterior fossa. There was no evidence of subarachnoid spread of the tumor. Magnetic resonance imaging was used to localize these lesions, and provided much better diagnostic information than either computerized tomography scans or myelograms.

The stereotaxic retractor in computer-assisted stereotaxic microsurgery

1988 ◽  
Vol 69 (2) ◽  
pp. 301-306 ◽  
Author(s):  
Patrick J. Kelly ◽  
Stephan J. Goerss ◽  
Bruce A. Kall
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Computer Assisted ◽  
Reference Structure ◽  
Resonance Imaging ◽  
Content Type ◽  
Intracranial Lesions ◽  
Fine Print

✓ The authors describe a cylindrical retractor that is attached to a standard stereotaxic frame. This retractor provides a route for stereotaxic procedures and exposure of and a reference structure for the computer-assisted removal of deep-seated intracranial lesions defined stereotaxically by computerized tomography and magnetic resonance imaging.

Middle cranial fossa arachnoid cyst developing in infancy

1995 ◽  
Vol 82 (6) ◽  
pp. 1075-1077 ◽  
Author(s):  
Yoshinari Okumura ◽  
Toshisuke Sakaki ◽  
Hidehiro Hirabayashi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Arachnoid Cyst ◽  
Middle Cranial Fossa ◽  
Resonance Imaging ◽  
Content Type ◽  
New Findings ◽  
Cranial Fossa ◽  
Fine Print

✓ The pathophysiology of primary arachnoid cysts of the middle cranial fossa is still unclear, and no widely accepted therapeutic criteria for this condition have been established. The authors present the case of a 7-year-old boy with this cyst accompanied by temporal lobe hypoplasia. On the basis of computerized tomography taken on the 2nd day after birth and magnetic resonance imaging upon admission, the arachnoid cyst in this case was attributed to brain hypoplasia secondary to abnormal arachnoid development and was confirmed to have developed primarily during infancy. Experience with this case yielded new findings useful in clarifying the pathophysiology of this condition and establishing therapeutic criteria for such a case.

MRI demonstration of clot in a small unruptured aneurysm causing stroke

1986 ◽  
Vol 65 (3) ◽  
pp. 411-412 ◽  
Author(s):  
Theodore W. Eller
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Middle Cerebral Artery ◽  
Computerized Tomography ◽  
Cerebral Artery ◽  
Unruptured Aneurysm ◽  
Resonance Imaging ◽  
Content Type ◽  
The Right ◽  
Fine Print

✓ The case is reported of a 69-year-old woman with an 18-mm unruptured aneurysm of the right middle cerebral artery which caused a moderate stroke. Magnetic resonance imaging revealed a clot inside the aneurysm that was not visible on computerized tomography scans. The danger of embolism from the clot prompted clipping of the aneurysm.

Computerized tomographic and magnetic resonance imaging of intracranial lipoma

1986 ◽  
Vol 65 (3) ◽  
pp. 407-410 ◽  
Author(s):  
Robert B. Friedman ◽  
Ricardo Segal ◽  
Richard E. Latchaw
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Incidental Finding ◽  
Resonance Imaging ◽  
Content Type ◽  
Intracranial Lipoma ◽  
Fine Print

✓ Intracranial lipoma is an uncommon lesion that has been well described in both the neurosurgical and neuroradiological literature for many years. This lesion is usually only an incidental finding, but it may be symptomatic. The authors describe a case of symptomatic intracranial lipoma of the superior medullary velum with emphasis on the correlation between computerized tomography and magnetic resonance imaging in evaluation of the lesion.

Childhood meningioma associated with meningioangiomatosis

1993 ◽  
Vol 78 (2) ◽  
pp. 287-289 ◽  
Author(s):  
Deborah Blumenthal ◽  
Mariana Berho ◽  
Stephen Bloomfield ◽  
Sydney S. Schochet ◽  
Howard H. Kaufman
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Resonance Imaging ◽  
Content Type ◽  
Histological Features ◽  
Interhemispheric Fissure ◽  
Mitotic Figures ◽  
The Right ◽  
Fine Print

✓ This paper reports a childhood meningioma in association with meningioangiomatosis. The patient was an 11-month-old baby boy who presented with a left focal seizure. He had no stigmata of neurofibromatosis. Computerized tomography and magnetic resonance imaging revealed an extra-axial, contrast-enhancing mass in the interhemispheric fissure which indented the right frontal lobe. The tumor was totally removed. Microscopically, the lesion was a fibrous and transitional meningioma with foci of necrosis and scattered mitotic figures. The adherent neural parenchyma showed the histological features of meningioangiomatosis. It is concluded that meningioangiomatosis may accompany childhood meningiomas more often than is generally appreciated.

Optic pathway glioma infiltrating into somatostatinergic pathways in a young boy with gigantism

1994 ◽  
Vol 81 (4) ◽  
pp. 595-600 ◽  
Author(s):  
Thomas J. Manski ◽  
Charles S. Ha worth ◽  
Bertrand J. Duval-Arnould ◽  
Elisabeth J. Rushing
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Optic Pathway Glioma ◽  
Optic Pathway ◽  
Resonance Imaging ◽  
Content Type ◽  
Hyperintense Signal ◽  
Immunocytochemical Studies ◽  
Stereotactic Biopsies ◽  
Fine Print

✓ The authors report gigantism in a 16-month-old boy with an extensive optic pathway glioma infiltrating into somatostatinergic pathways, as revealed by magnetic resonance imaging and immunocytochemical studies. Stereotactic biopsies of areas showing hyperintense signal abnormalities on T2-weighted images in and adjacent to the involved visual pathways provided rarely obtained histological correlation of such areas. The patient received chemotherapy, which resulted in reduction of size and signal intensity of the tumor and stabilization of vision and growth velocity.

Magnetic resonance imaging of spinal arteriovenous malformations

1987 ◽  
Vol 66 (6) ◽  
pp. 830-834 ◽  
Author(s):  
John L. Doppman ◽  
Giovanni Di Chiro ◽  
Andrew J. Dwyer ◽  
Joseph L. Frank ◽  
Edward H. Oldfield
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arteriovenous Malformations ◽  
High Signal ◽  
Resonance Imaging ◽  
Content Type ◽  
Spinal Arteriovenous Malformations ◽  
Magnetic Resonance Imaging Mri ◽  
Spinal Avm ◽  
Fine Print

✓ Magnetic resonance imaging (MRI) was performed on 12 patients with spinal arteriovenous malformations (AVM's). Six lesions were intramedullary, five were dural, and one was in a posterior extramedullary location. Serpentine filling defects similar to the classic myelographic findings were demonstrated within the high-signal cerebrospinal fluid on T2-weighted coronal scans. The intramedullary nidus was identified by MRI as an area of low-signal intensity within the cord in all six intramedullary AVM's. Neither the dural nor the posterior extramedullary lesions showed intramedullary components. It is concluded that MRI may noninvasively provide the initial diagnosis of a spinal AVM and distinguish intramedullary from dural and extramedullary lesions.

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