Vascular malformation simulating a glioma on computerized tomography

1981 ◽  
Vol 54 (1) ◽  
pp. 125-127 ◽  
Author(s):  
Patrick M. Foy ◽  
Leandro Lozada ◽  
Malcolm D. Shaw
Keyword(s):  
Arteriovenous Malformation ◽  
Computerized Tomography ◽  
Vascular Malformation ◽  
Ct Scans ◽  
Venous Aneurysm ◽  
Content Type ◽  
Fine Print

✓ A patient with an arteriovenous malformation and giant venous aneurysm was erroneously diagnosed as having an oligodendroglioma on computerized tomography (CT). This case highlights some of the problems of interpretation of CT scans and the dangers of misinterpretation, particularly in the surgical context.

Clinicopathological investigation of gyral high density on computerized tomography following severe head injury in children

1995 ◽  
Vol 82 (6) ◽  
pp. 995-1001 ◽  
Author(s):  
Takehide Onuma ◽  
Yasuko Shimosegawa ◽  
Motonobu Kameyama ◽  
Hiroaki Arai ◽  
Kiyoshi Ishii
Keyword(s):  
Computerized Tomography ◽  
Head Trauma ◽  
Brain Atrophy ◽  
High Density ◽  
Ct Scans ◽  
Severe Head Trauma ◽  
Content Type ◽  
Subacute Stage ◽  
Fine Print ◽  
Diffuse Brain

✓ The authors have treated five cases of severe head trauma in children in which abnormally high density along gyri, “gyral high density,” was seen on plain computerized tomography (CT) scans in the subacute stage of the injury. The prognosis in all cases was poor, with either severe disability or a vegetative state as the outcome due to significant brain atrophy following gyral high density. This pathology was classified into three clinical stages: 1) acute stage, cerebral ischemia in which there is diffuse low density of the cerebrum on CT scans (most marked on the 3rd and 4th days); 2) subacute stage, hemorrhagic infarction showing gyral high density on plain CT scans (between 1 and 4 weeks); and 3) chronic stage, brain atrophy (beginning 4 weeks after the trauma). In their consecutive series of head-injured patients (516 children, 1459 adults), the authors did not find gyral high density on CT scan in adults. This is probably due to the fact that adults who suffer the severe head trauma associated with diffuse brain swelling or diffuse brain edema cannot survive, thus making this gyral high density unique to children.

Successful stereotaxic evacuation of an acute pontomedullary hematoma

1985 ◽  
Vol 62 (1) ◽  
pp. 153-156 ◽  
Author(s):  
D. Andries Bosch ◽  
Gustaaf N. Beute
Keyword(s):  
Arteriovenous Malformation ◽  
Young Woman ◽  
Computerized Tomography ◽  
Ct Scanning ◽  
Vascular Lesion ◽  
Content Type ◽  
Healthy Young Woman ◽  
First Child ◽  
Fine Print

✓ A healthy young woman developed a rapidly progressive pontomedullary lesion 24 hours after delivery of her first child. The lesion was shown on computerized tomography (CT) to be a primary hematoma. Stereotaxic aspiration was carried out, and the patient recovered. Angiography and CT scanning demonstrated a vascular lesion compatible with an arteriovenous malformation.

Successful evacuation of a pontine hematoma secondary to rupture of a pathologically diagnosed “cryptic” vascular malformation

1973 ◽  
Vol 39 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Ben B. Scott ◽  
Joachim F. Seeger ◽  
Richard C. Schneider
Keyword(s):  
Arteriovenous Malformation ◽  
Brain Stem ◽  
Posterior Fossa ◽  
Vascular Malformation ◽  
Nerve Palsy ◽  
Neurological Deficits ◽  
Content Type ◽  
Brain Stem Lesion ◽  
Seventh Nerve ◽  
Fine Print

✓ A posterior fossa exploration was performed on a child thought initially to have an inoperable brain stem lesion. A pontine hematoma was discovered and evacuated. The pathological specimen was designated as a “cryptic” arteriovenous malformation. All preoperative neurological deficits disappeared except for a minimal left seventh nerve palsy.

Intracerebral myiasis from Hypoderma bovis larva in a child

1989 ◽  
Vol 71 (6) ◽  
pp. 929-931 ◽  
Author(s):  
Müfit Kalelioğlu ◽  
Gönül Aktürk ◽  
Fadiil Aktürk ◽  
Sezer Ş. Komsuoğlu ◽  
Kayhan Kuzeyü ◽  
...  
Keyword(s):  
Computerized Tomography ◽  
Ct Scans ◽  
Intracerebral Hematoma ◽  
Review Of The Literature ◽  
Content Type ◽  
First Case ◽  
Hypoderma Bovis ◽  
History Of ◽  
Exact Identification ◽  
Fine Print

✓ Cerebral myiasis with a 10-day history of convulsions due to an intracerebral hematoma caused by a Hypoderma bovis larva is reported in an 8-year-old child. Computerized tomography (CT) showed the hematoma in a right parieto-occipital location. The H. bovis larva and the extensive intracerebral hematoma were discovered during surgery. Among human parasitoses, cerebral myiasis is rare: a review of the literature revealed only two reports, one published in 1969 and one in 1980. This is the first case that has been diagnosed as cerebral myiasis with exact identification of the Hypoderma bovis larva both from the CT scans and at surgery in a patient during life.

The angiographically occult cerebrovascular malformation

1978 ◽  
Vol 48 (2) ◽  
pp. 292-296 ◽  
Author(s):  
James B. Golden ◽  
Richard A. Kramer
Keyword(s):  
Intracerebral Hemorrhage ◽  
Ct Scan ◽  
Vascular Malformation ◽  
Ct Scans ◽  
Cerebral Lesions ◽  
Content Type ◽  
Surgical Exploration ◽  
Diagnostic Possibility ◽  
Cerebrovascular Malformation ◽  
Fine Print

✓ Three cases presenting with hemiparesis, headache, or seizures gave no history suggestive of subarachnoid or intracerebral hemorrhage. Carotid arteriograms were performed, and in each case failed to demonstrate a vascular malformation. In all three cases cerebral lesions were shown by either computerized tomographic (CT) scan, radionuclide scan, or both. Surgical exploration and biopsy revealed a vascular malformation in each case. The CT scans in two of the cases showed dense lesions that could suggest vascular malformation as a diagnostic possibility.

Localization of brain tumors with a simple scalp-mounted fiducial device

1989 ◽  
Vol 70 (2) ◽  
pp. 280-281 ◽  
Author(s):  
Henry Hirschberg
Keyword(s):  
Brain Tumors ◽  
Ct Scan ◽  
Computerized Tomography ◽  
Ct Images ◽  
Ct Scans ◽  
Content Type ◽  
Varying Length ◽  
Fine Print

✓ A method is described for marking the site of a tumor on the scalp based on information from computerized tomography (CT) scans. The technique employs a syrinx-shaped array of radiopaque catheters of varying length taped to the patient's scalp for visualization on the CT scan. Fiducial markings on the CT images allow the transfer of the tumor's location directly onto the scalp. The device can be placed anywhere on the scalp, including in a parasagittal position.

Oligodendroglioma and cerebral cavernous angioma

1985 ◽  
Vol 62 (1) ◽  
pp. 145-147 ◽  
Author(s):  
Chee Pin Chee ◽  
Robin Johnston ◽  
David Doyle ◽  
Peter Macpherson
Keyword(s):  
Intracranial Pressure ◽  
Contrast Enhancement ◽  
Computerized Tomography ◽  
Vascular Malformation ◽  
Signs And Symptoms ◽  
Cavernous Angioma ◽  
Raised Intracranial Pressure ◽  
Content Type ◽  
Vascular Component ◽  
Fine Print

✓ The authors report a case of frontal lobe oligodendroglioma associated with a cavernous angioma. The patient presented with signs and symptoms of raised intracranial pressure. Computerized tomography with contrast enhancement failed to detect the vascular component. The clinical and pathological significance of the presence of this vascular malformation in an oligodendroglioma is discussed.

CT-assisted stereotaxic aspiration of colloid cysts of the third ventricle

1985 ◽  
Vol 62 (2) ◽  
pp. 238-242 ◽  
Author(s):  
Juan J. Rivas ◽  
Ramiro D. Lobato
Keyword(s):  
Computerized Tomography ◽  
Third Ventricle ◽  
Ct Scanning ◽  
Ct Scans ◽  
Content Type ◽  
The Third ◽  
Colloid Cysts ◽  
Reproducible Method ◽  
Inner Diameter ◽  
Fine Print

✓ A technique is reported for the stereotaxic evacuation of colloid cysts of the third ventricle using a stereotaxic system adapted for computerized tomography (CT) scanning. This is an accurate, simple, and reproducible method that avoids the risks of direct approaches. Successful intracystic aspiration resulting in the cure of the patient may be difficult when the viscosity of the cyst contents is high. Thus, the authors use a large cannula (1.8 mm in inner diameter) to evacuate cysts that appear hyperdense on CT scans; these seem to contain a thicker colloid material than hypodense or isodense cysts.

Detection of cryptic vascular malformations by computerized tomography

1979 ◽  
Vol 51 (4) ◽  
pp. 546-551 ◽  
Author(s):  
Hideo Terao ◽  
Tomokatsu Hori ◽  
Masao Matsutani ◽  
Riki Okeda
Keyword(s):  
Arteriovenous Malformation ◽  
Computerized Tomography ◽  
Fourth Ventricle ◽  
Vascular Malformations ◽  
Cavernous Angioma ◽  
The Other ◽  
Intracerebral Hematoma ◽  
Content Type ◽  
Subarachnoid Hemorrhages ◽  
Fine Print

✓ Two cases of cryptic vascular malformation that were not demonstrated by cerebral angiography were detected by computerized tomography. One of these patients had a cavernous angioma in the fourth ventricle with recurrent subarachnoid hemorrhages, and the other harbored a small arteriovenous malformation and intracerebral hematoma. The usefulness and limitations of computerized tomography in the identification of cryptic vascular malformations are discussed.

Microgravimetric analysis of human brain tissue Correlation with computerized tomography scanning

1981 ◽  
Vol 54 (6) ◽  
pp. 797-801 ◽  
Author(s):  
Hiroshi Takagi ◽  
Kenneth Shapiro ◽  
Anthony Marmarou ◽  
Hugh Wisoff
Keyword(s):  
White Matter ◽  
Arteriovenous Malformation ◽  
Water Content ◽  
Computerized Tomography ◽  
Attenuation Coefficient ◽  
Human Brain Tissue ◽  
Content Type ◽  
Ct Attenuation ◽  
Elevated Water ◽  
Fine Print

✓ Microgravimetric technique was used to measure the water content of tumors and adjacent brain. Multiple 1-cu mm samples were obtained from 17 patients with neurosurgical lesions. The site of each sample was located on the appropriate computerized tomography (CT) slice, and the water content correlated with the CT attenuation coefficient. The water content of peritumor white matter in 11 patients with glioblastomas was 5% to 8% H2O/gm tissue greater than the water content of white matter measured in three normal control individuals. These areas corresponded to low CT attenuation coefficients (8 to 15 EMI units). There were no statistically significant differences between the water content of tumors and adjacent white matter, even though the CT attenuation coefficient of the tumor was often of higher value. Low CT attenuation coefficient areas surrounding meningioma, metastasis, and lymphoma always correlated with elevated water content. The greatest water content (84.7% H2O/gm tissue) was found in the white matter surrounding an arteriovenous malformation. There was no correlation between the CT attenuation coefficient of this tissue and the water content in the arteriovenous malformation. This study shows that areas of low CT attenuation coefficient may correlate with measurements of the water content of tissue, but that increased water content may exist without demonstrable changes in the CT attenuation coefficient.

Sign in / Sign up

Export Citation Format

Share Document