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.

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.

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.

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.

Large intramedullary lipoma of the cervical cord and posterior fossa

1986 ◽  
Vol 64 (6) ◽  
pp. 974-976 ◽  
Author(s):  
Koreaki Mori ◽  
Yoshihiko Kamimura ◽  
Yasufumi Uchida ◽  
Masahiro Kurisaka ◽  
Sueo Eguchi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Posterior Fossa ◽  
Cervical Cord ◽  
Resonance Imaging ◽  
Content Type ◽  
Fine Print

✓ A large intramedullary lipoma of the cervical cord extending into the posterior fossa is reported in a 7-year-old boy. Magnetic resonance imaging was very useful for delineation of the anatomy of the lipoma as an aid in planning the operation.

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.

Brainstem tethering in Dandy—Walker syndrome: a complication of cystoperitoneal shunting

1995 ◽  
Vol 83 (6) ◽  
pp. 1072-1074 ◽  
Author(s):  
John C. Liu ◽  
Joseph D. Ciacci ◽  
Timothy M. George
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Posterior Fossa ◽  
Cranial Nerve ◽  
Resonance Imaging ◽  
Content Type ◽  
Cystoperitoneal Shunt ◽  
Cystoperitoneal Shunting ◽  
Cyst Fenestration ◽  
Fine Print

✓ Treatment of the Dandy—Walker syndrome has included placement of a ventriculoperitoneal shunt alone or in combination with a posterior fossa cystoperitoneal shunt. Complications in shunting are common and are usually related to malfunction or infection. The authors present a case in which the patient developed headaches and focal cranial nerve deficits following infection caused by a cystoperitoneal shunt. Magnetic resonance imaging showed tethering of the brainstem. A posterior fossa craniotomy with microsurgical untethering and cyst fenestration achieved two goals: improvement of the focal cranial nerve deficits and elimination of the cystoperitoneal shunt.

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