Computerized tomography in hydatid cyst of the brain

1978 ◽  
Vol 49 (3) ◽  
pp. 408-411 ◽  
Author(s):  
Kazem Abbassioun ◽  
Hamid Rahmat ◽  
Nosrat O. Ameli ◽  
Mansour Tafazoli
Keyword(s):  
Differential Diagnosis ◽  
Hydatid Cyst ◽  
Computerized Tomography ◽  
Hydatid Disease ◽  
Preoperative Diagnosis ◽  
Cystic Lesions ◽  
Content Type ◽  
The Brain ◽  
Ct Features ◽  
Fine Print

✓ From among 1500 patients who underwent computerized tomography (CT) during an 18-month period, five cases of hydatid disease of the brain were diagnosed. The preoperative diagnosis is of paramount importance as the cyst has to be removed unruptured. The CT features of this condition are practically pathognomonic. The authors discuss the CT findings in these cases and differential diagnosis with other cystic lesions of the brain. The help that this safe and sure method of investigation gives to attain preoperative diagnosis is emphasized.

Multiple giant hydatid cysts of the brain

1982 ◽  
Vol 57 (3) ◽  
pp. 413-415 ◽  
Author(s):  
Ajay Sharma ◽  
Jacob Abraham
Keyword(s):  
Computerized Tomography ◽  
Hydatid Disease ◽  
Rare Case ◽  
The Body ◽  
Hydatid Cysts ◽  
Content Type ◽  
Multiple Primary ◽  
The Right ◽  
The Brain ◽  
Fine Print

✓ A rare case of multiple primary hydatid cysts of the brain is reported in a 9-year-old girl. There were five cysts, occupying most of the right supratentorial region. The biggest cyst measured 9 cm across, while the smallest one was 4.5 cm in diameter. The diagnosis was based on computerized tomography findings. The patient did not have any evidence of hydatid disease elsewhere in the body. The delivery of all the cysts resulted in the dramatic neurological recovery of this patient.

The use of computerized tomography in the diagnosis of cerebral hydatid cysts

1979 ◽  
Vol 50 (3) ◽  
pp. 339-342 ◽  
Author(s):  
Tuncalp Özgen ◽  
Aykut Erbengi ◽  
Vural Bertan ◽  
Süleyman Saǧlam ◽  
Özdemir Gürçay ◽  
...  
Keyword(s):  
Hydatid Cyst ◽  
Computerized Tomography ◽  
Ct Scanning ◽  
Hydatid Cysts ◽  
Content Type ◽  
Cerebral Hydatid Cyst ◽  
Cyst Membrane ◽  
Fine Print

✓ Eleven cases of cerebral hydatid cyst, diagnosed by computerized tomography (CT), are presented. The importance of CT in minimizing the possibility of accidentally tapping or tearing the cyst membrane is stressed. Repeat CT scanning after removal of the cyst revealed atrophy in the affected hemisphere.

Dermoid tumors occurring at the site of previous myelomeningocele repair

1986 ◽  
Vol 65 (6) ◽  
pp. 779-783 ◽  
Author(s):  
R. Michael Scott ◽  
Samuel M. Wolpert ◽  
Louis E. Bartoshesky ◽  
Seymour Zimbler ◽  
George T. Klauber
Keyword(s):  
Differential Diagnosis ◽  
Lower Extremity ◽  
Computerized Tomography ◽  
Neurological Deterioration ◽  
Bladder Function ◽  
Content Type ◽  
Surgical Exploration ◽  
Myelomeningocele Repair ◽  
Tomography Scanning ◽  
Fine Print

✓ Four children with previously repaired myelomeningoceles presented toward the end of the first decade or early in the second decade of life with deteriorating lower-extremity and bladder function. Myelography and computerized tomography scanning demonstrated irregular filling defects at the area of the myelomeningocele repair, and surgical exploration disclosed dermoid tumors that were adherent to the placode and adjacent roots. Dermoid tumors should be considered in the differential diagnosis of neurological deterioration in children with a repaired myelomeningocele.

Pulsating unilateral exophthalmos due to traumatic aneurysm of the intraorbital ophthalmic artery

1984 ◽  
Vol 60 (3) ◽  
pp. 630-632 ◽  
Author(s):  
Hamid Rahmat ◽  
Kazem Abbassioun ◽  
Abbass Amirjamshidi
Keyword(s):  
Differential Diagnosis ◽  
Computerized Tomography ◽  
Ophthalmic Artery ◽  
Traumatic Aneurysm ◽  
Content Type ◽  
Missile Injury ◽  
Fine Print

✓ A case of pulsating unilateral exophthalmos is presented. It was caused by a traumatic aneurysm of the intraorbital ophthalmic artery, secondary to missile injury. Evolution of the aneurysm was observed clinically, by angiography, and by computerized tomography. The differential diagnosis of pulsating exophthalmos and the pathogenesis of such aneurysms are briefly discussed.

Variables affecting the accuracy of stereotactic localization using computerized tomography

1993 ◽  
Vol 79 (5) ◽  
pp. 667-673 ◽  
Author(s):  
Richard D. Bucholz ◽  
Hector W. Ho ◽  
Jason P. Rubin
Keyword(s):  
Computerized Tomography ◽  
Neurosurgical Procedures ◽  
Slice Thickness ◽  
Laptop Computer ◽  
Content Type ◽  
Mean Error ◽  
Critical Areas ◽  
Stereotactic Localization ◽  
The Brain ◽  
Fine Print

✓ Stereotactic localization using computerized tomography (CT) is increasingly employed to guide neurosurgical procedures in crucial areas of the brain such as the brain stem. This technique allows the surgeon to resect a lesion in its entirety while sparing critical areas of the brain. Thus, the parameters used for scanning should be selected for maximum accuracy. While the small pixel size of CT scanners suggests a high degree of precision in localization, there have been few systematic studies of this accuracy. The authors have studied the amount of error in localization created by variables such as CT scan thickness, interscan spacing, size of lesion, and method of computation when using the Brown-Roberts-Wells (BRW) stereotactic system. Over 1000 CT scans were made of a phantom composed of spheres of differing diameter and location. The CT slice thickness was varied from 1.5 to 5.0 mm, and interscan spacing was varied from 0.5 to 3.0 mm. The coordinates of the center of the spheres were calculated independently using the laptop computer supplied with the unit and also by a stereotactic computer which automatically calculates the center of the fiducials. The actual BRW coordinates of the sphere center were obtained using the phantom base and were then compared to the computer-calculated coordinates to determine error in localization. Variables with a significant effect on error included the scan thickness, interscan spacing, and sphere size. The mean error decreased 23% as the scan thickness decreased from 5.0 to 1.5 mm and 45% as the interscan spacing decreased from 3.0 to 0.5 mm. Mean error was greatest for the smallest sphere sizes. The two computational methods did not differ in error. This study suggests that, for critical areas of the brain or for small lesions, a scan thickness of 1.5 mm and interscan spacing of 0.5 mm should be employed.

Tuberculoma presenting as an en plaque meningioma

1996 ◽  
Vol 85 (4) ◽  
pp. 685-688 ◽  
Author(s):  
Jerry Bauer ◽  
Roger F. Johnson ◽  
Joseph M. Levy ◽  
Donald V. Pojman ◽  
John R. Ruge
Keyword(s):  
Magnetic Resonance ◽  
Computerized Tomography ◽  
Brain Parenchyma ◽  
Magnetic Resonance Images ◽  
Content Type ◽  
Multiple Lesions ◽  
Intracranial Tuberculoma ◽  
The Brain ◽  
Fine Print

✓ Intracranial tuberculomas generally present as either solitary or multiple lesions in the brain parenchyma. They are characterized by a ring-enhancing area on either computerized tomography scans or magnetic resonance images. A case is presented in which an intracranial tuberculoma was dural based and had an appearance similar to an en plaque meningioma.

Primary intracranial epidermoid carcinoma

1979 ◽  
Vol 50 (6) ◽  
pp. 830-833 ◽  
Author(s):  
Yoshiki Nosaka ◽  
Seigo Nagao ◽  
Kazuo Tabuchi ◽  
Akira Nishimoto
Keyword(s):  
Brain Stem ◽  
Computerized Tomography ◽  
Cerebellopontine Angle ◽  
Epidermoid Carcinoma ◽  
Malignant Tissue ◽  
Content Type ◽  
The Right ◽  
Intracranial Epidermoid ◽  
The Brain ◽  
Fine Print

✓ A case is presented of primary intracranial epidermoid carcinoma in the right cerebellopontine angle which was visualized as a homogeneously enhanced mass on computerized tomography. At autopsy the malignant tissue was found to have invaded the brain stem.

Diagnosis and treatment of suprasellar arachnoid cyst

1979 ◽  
Vol 50 (4) ◽  
pp. 515-518 ◽  
Author(s):  
Raj Murali ◽  
Fred Epstein
Keyword(s):  
Computerized Tomography ◽  
Arachnoid Cyst ◽  
Preoperative Diagnosis ◽  
Third Ventricle ◽  
Arachnoid Cysts ◽  
Content Type ◽  
Choice Of Treatment ◽  
Suprasellar Arachnoid Cyst ◽  
Conray Ventriculography ◽  
Fine Print

✓ Three cases of suprasellar arachnoid cysts in children are described. The importance of differentiating such a lesion from a dilated third ventricle is stressed. The value of computerized tomography with Conray ventriculography in preoperative diagnosis, symptomatology, and choice of treatment are discussed.

Supratentorial and parafalcial subdural empyema diagnosed by computerized tomography

1981 ◽  
Vol 54 (1) ◽  
pp. 105-107 ◽  
Author(s):  
Bernardo Borovich ◽  
Jacob Braun ◽  
Silvia Honigman ◽  
Henry Z. Joachims ◽  
Eli Peyser
Keyword(s):  
Computerized Tomography ◽  
Subdural Empyema ◽  
Subdural Space ◽  
Carotid Angiography ◽  
Successful Result ◽  
Content Type ◽  
The Brain ◽  
Fine Print

✓ A case is presented in which computerized tomography (CT) demonstrated a supratentorial and parafalcial purulent collection. However, neither carotid angiography nor CT revealed the small scattered pockets of pus that were found over the convexity at operation. The entire subdural space was exposed by a wide craniectomy, permitting adequate subdural drainage and decompression of the brain. It is thought that thorough drainage of the entire subdural space is crucial for the attainment of a successful result in a singlestage operation.

Focal histiocytosis X of the parietal lobe

1980 ◽  
Vol 52 (3) ◽  
pp. 431-433 ◽  
Author(s):  
Arfa Khan ◽  
John D. Fulco ◽  
Ashok Shende ◽  
Alan Rosenthal ◽  
Joseph A. Marc
Keyword(s):  
Computerized Tomography ◽  
Parietal Lobe ◽  
Histiocytosis X ◽  
Review Of The Literature ◽  
Content Type ◽  
The Brain ◽  
Tomography Scan ◽  
Space Occupying Lesion ◽  
Fine Print

✓ The authors describe a case of histiocytosis X of the parietal lobe presenting as a space-occupying lesion on a computerized tomography scan of the brain. The clinical, radiographic, and therapeutic aspects of the case are discussed. A brief review of the literature is presented.

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