Computerized tomography and pathological correlation in cystic meningiomas

1979 ◽  
Vol 50 (1) ◽  
pp. 103-105 ◽  
Author(s):  
Dennis Becker ◽  
David Norman ◽  
Charles B. Wilson
Keyword(s):  
Cerebrospinal Fluid ◽  
Computerized Tomography ◽  
Metastatic Tumor ◽  
Adjacent Area ◽  
Low Density ◽  
Content Type ◽  
Pathological Correlation ◽  
Subarachnoid Spaces ◽  
Fine Print ◽  
Cystic Meningiomas

✓ Meningiomas have been reported to have associated areas of surrounding low density on computerized tomography (CT). These low-density areas may represent edema, widened subarachnoid spaces, loculated cerebrospinal fluid, demyelination, or adjacent tumor. Two cases are presented in which this adjacent area of low density represented a tumor cyst. Recognition is important as the CT appearance of these lesions may simulate a metastatic tumor.

Cystic meningiomas

1986 ◽  
Vol 64 (1) ◽  
pp. 35-38 ◽  
Author(s):  
Giuseppe Parisi ◽  
Rosario Tropea ◽  
Salvatore Giuffrida ◽  
Maria Lombardo ◽  
Francesco Giuffrè
Keyword(s):  
Computerized Tomography ◽  
Metastatic Tumor ◽  
Surgical Removal ◽  
Radiological Evaluation ◽  
Presumptive Diagnosis ◽  
Content Type ◽  
Cystic Meningioma ◽  
Tomography Appearance ◽  
Fine Print ◽  
Cystic Meningiomas

✓ Seven patients with cystic meningioma are reported. The computerized tomography appearance of these meningiomas may mimic that of a glial or metastatic tumor with cystic or necrotic changes, and lead to an incorrect presumptive diagnosis. Radiological evaluation and recognition are important for the surgical removal of these potentially curable neoplasms.

Age-related changes in the proportion of intracranial cerebrospinal fluid space measured using volumetric computerized tomography scanning

2002 ◽  
Vol 97 (3) ◽  
pp. 607-610 ◽  
Author(s):  
Hiroshi Wanifuchi ◽  
Takashi Shimizu ◽  
Takashi Maruyama
Keyword(s):  
Cerebrospinal Fluid ◽  
Computerized Tomography ◽  
Ct Scanning ◽  
Volume Measurement ◽  
Intracranial Volume ◽  
Content Type ◽  
Standard Curve ◽  
Age Related ◽  
Fine Print ◽  
Age Related Changes

Object. The purpose of this study was to establish a standard curve to demonstrate normal age-related changes in the proportion of intracranial cerebrospinal fluid (CSF) space in intracranial volume (ICV) during each decade of life. Methods. Using volumetric computerized tomography (CT) scanning and computer-guided volume measurement software, ICV and cerebral parenchymal volume (CPV) for each decade of life were measured and the intracranial CSF ratio was calculated by the following formula: percentage of CSF = (ICV − CPV)/ICV × 100%. The standard curve for age-related changes in normal percentages of intracranial CSF was obtained. Conclusions. Based on this standard curve, the percentage of intracranial CSF rapidly increased after the sixth decade, seeming to reflect the brain atrophy that accompanies increased age.

Cystic meningiomas: a clinicoradiological study

1982 ◽  
Vol 57 (1) ◽  
pp. 8-13 ◽  
Author(s):  
Stephen Dell ◽  
S. Ramaiah Ganti ◽  
Abe Steinberger ◽  
James McMurtry
Keyword(s):  
Computerized Tomography ◽  
Ct Scanning ◽  
Cyst Formation ◽  
Radiological Evaluation ◽  
Content Type ◽  
Single Process ◽  
Supratentorial Tumors ◽  
Fine Print ◽  
Cystic Meningiomas

✓ A group of eight cystic meningiomas is considered, with particular reference to preoperative radiological evaluation. Computerized tomography (CT) scanning alone is inadequate for diagnosis, and the authors offer an assessment of the current methods for preoperative identification of cystic supratentorial tumors, while reviewing the multiple etiologies suggested for the CT appearance. No single process explains all the aspects of peri- or intratumoral cyst formation in meningiomas.

Intraventricular fat from a ruptured sacral dermoid cyst: clinical, radiographic, and pathological correlation

1993 ◽  
Vol 78 (4) ◽  
pp. 666-668 ◽  
Author(s):  
Tim A. Scearce ◽  
Cheng-Mei Shaw ◽  
Andrew D. Bronstein ◽  
Phillip D. Swanson
Keyword(s):  
Dermoid Cyst ◽  
Subarachnoid Space ◽  
Unique Case ◽  
Content Type ◽  
Pathological Correlation ◽  
Subarachnoid Spaces ◽  
Fine Print

✓ The authors report a unique case of a dermoid cyst that ruptured into the lumbosacral subarachnoid space following trauma, resulting in dissemination of cyst contents into the ventricles and cerebrospinal subarachnoid spaces. An intraspinous source should be considered when intraventricular fat is identified without a clear intracranial source.

Benign enlargement of the subarachnoid spaces in the infant

1981 ◽  
Vol 54 (4) ◽  
pp. 504-508 ◽  
Author(s):  
Laura R. Ment ◽  
Charles C. Duncan ◽  
Robert Geehr
Keyword(s):  
Computerized Tomography ◽  
Head Circumference ◽  
Neurological Dysfunction ◽  
Time Interval ◽  
Ventricular Size ◽  
Content Type ◽  
Subarachnoid Spaces ◽  
Fine Print

✓ The authors report 18 infants with benign enlargement of the subarachnoid spaces seen at their institution during a 1-year time interval. This condition is characterized by the computerized tomography findings of dilatation of the subarachnoid spaces, normal or slightly enlarged ventricular size, and prominence of the basilar cisterns. Most cases were found in children referred for the evaluation of abnormally increasing head circumference measurements. Although it was not possible to document the development, and, in several cases, improvement of this process, in these patients enlargement of the subarachnoid spaces was a benign diagnosis, not associated with serious neurological dysfunction.

Cerebrospinal fluid edema: a rare complication of shunt operations for hydrocephalus

1982 ◽  
Vol 57 (5) ◽  
pp. 697-700 ◽  
Author(s):  
Yasuhiro Chiba ◽  
Hiroshi Takagi ◽  
Fumoto Nakajima ◽  
Satoshi Fujii ◽  
Takao Kitahara ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
White Matter ◽  
Rare Complication ◽  
Shunt Revision ◽  
Ventricular Catheter ◽  
Shunt Operation ◽  
Low Density ◽  
Content Type ◽  
Low Density Area ◽  
Fine Print

✓ Three cases are presented in which a rare complication occurred after a shunt operation for hydrocephalus. On postoperative computerized tomography (CT) scans, extensive low-density areas appeared in the white matter along the ventricular catheter. After shunt revision, gradual resolution or disappearance of the low-density area was clearly demonstrated on CT. In one patient, a collection of cerebrospinal fluid (CSF) was confirmed at operation and appeared to lie in the extracellular spaces of the white matter. The phenomenon is considered to be localized CSF edema, different from porencephaly.

Localization of dural fistulas using metrizamide digital subtraction fluoroscopic cisternography

1988 ◽  
Vol 68 (5) ◽  
pp. 721-725 ◽  
Author(s):  
Tatsuo Takahashi ◽  
Naomi Mutsuga ◽  
Toshiki Aoki ◽  
Takashi Handa ◽  
Chiharu Tanoi ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Real Time ◽  
Computerized Tomography ◽  
Digital Subtraction ◽  
Content Type ◽  
Cerebrospinal Fluid Rhinorrhea ◽  
Minimal Dose ◽  
Real Time Visualization ◽  
Metrizamide Cisternography ◽  
Fine Print

✓ Demonstration of the exact site of dural fistulas in cases of cerebrospinal fluid rhinorrhea is difficult. Previous reports have described the use of metrizamide cisternography combined with either hypocycloidal tomography or computerized tomography; however, direct, dynamic, real-time visualization of the fistula is difficult with instillation of a minimal dose of metrizamide using those methods. A digital video subtraction fluoroscopy system can visualize the actual site of the fistula directly and dynamically using only a small amount of metrizamide.

Cerebrospinal fluid rhinorrhea following surgery for acoustic neurinoma

1986 ◽  
Vol 64 (4) ◽  
pp. 676-678 ◽  
Author(s):  
Derek S. Gordon ◽  
Alan G. Kerr
Keyword(s):  
Cerebrospinal Fluid ◽  
Computerized Tomography ◽  
Posterior Wall ◽  
Acoustic Neurinoma ◽  
Internal Auditory Meatus ◽  
Content Type ◽  
Cerebrospinal Fluid Rhinorrhea ◽  
Delayed Onset ◽  
Fine Print

✓ In a series of 48 patients with acoustic neurinoma removed by the suboccipital route, one patient developed cerebrospinal fluid rhinorrhea and another patient had delayed-onset meningitis. Each complication was attributed to opening the posteromedial air-cell tract in the posterior wall of the internal auditory meatus. In operations requiring removal of the posterior meatal wall, it is important to look for the air-cell tract which may not be apparent on computerized tomography. If the tract is opened the cells should be occluded by bone wax.

Cerebral gumma

1985 ◽  
Vol 63 (2) ◽  
pp. 301-303 ◽  
Author(s):  
Wen-Zern Hwang ◽  
Takeshi Hasegawa ◽  
Haruhide Ito ◽  
Takashi Shimoji ◽  
Shinjiro Yamamoto
Keyword(s):  
Contrast Medium ◽  
Computerized Tomography ◽  
Temporal Lobe ◽  
Intravenous Administration ◽  
Low Density ◽  
Content Type ◽  
Vessel Walls ◽  
The Right ◽  
Fine Print

✓ A case of focal cerebral syphilitic gumma of the right temporal lobe is reported. Angiography showed moderate focal hypervascularity with stretched vessels, and irregularity of the vessel walls. Plain computerized tomography revealed an area of low density that enhanced strongly after intravenous administration of contrast medium.

A new radionuclide method for the diagnosis of posttraumatic cerebrospinal fistulas

1982 ◽  
Vol 57 (1) ◽  
pp. 92-98 ◽  
Author(s):  
Lysiane Mamo ◽  
Jean Cophignon ◽  
Alain Rey ◽  
Claude Thurel
Keyword(s):  
Cerebrospinal Fluid ◽  
Computerized Tomography ◽  
Gamma Camera ◽  
Sitting Position ◽  
Content Type ◽  
Radionuclide Cisternography ◽  
Radionuclide Tracer ◽  
Fine Print

✓ The authors describe their technique for identifying and localizing posttraumatic cerebrospinal fluid fistulas. The method entails injection of radionuclide tracer into the subarachnoid frontal space with the patient in a sitting position followed by gamma camera scintigraphic recordings. The results in 308 patients are presented; these are compared with those of suboccipital radionuclide cisternography in 40 cases and metrizamide computerized tomography cisternography in nine cases. Transient complications occurred in only three patients.

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