Search Results
Results 351 - 400 of 652
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Niimura K - - 1997
Infantile myofibromatosis (IM) is a proliferative disorder of infancy and early childhood characterized by the nodular or diffuse growth of lesions that are comprised of a mixture of mesenchymal elements. Intracranial involvement is reportedly rare, only eight such patients having been reported to our knowledge. We report on a 4-year-old ...
Lee A G - - 1997
Intracranial adenoid cystic carcinoma is uncommon. We report two unusual cases of intracranial adenoid cystic carcinoma. The first patient presented with a steroid-responsive optic neuropathy from an orbital mass that simulated orbital pseudotumor, and subsequently developed intracranial involvement, presumably by contiguous perineural spread. The second patient presented with proptosis of ...
Ozveren F - - 1997
A 63-year-old female presented with intracranial tuberculoma manifesting as severe headache. Systemic examination found a mass in the left kidney. The histological diagnosis was tuberculoma after kidney biopsy. Cranial computed tomography found two lesions, in the right frontal and occipital lobes. The intracranial lesions were considered to be tuberculomas. Tuberculosis ...
Schultz K D KD - - 1997
A case of an intracerebral juvenile xanthogranuloma (JXG) producing complex-partial seizures in a 13-year-old boy is presented. Although the child had no history of JXGs or a systemic histiocytic proliferative disorder, the histopathological and immunocytochemical studies of this lesion were identical to that of a cutaneous JXG. This represents the ...
Noble E R - - 1997
We present two cases of unusually large skull base paragangliomas. The first tumor was accompanied by marked bony destruction of the central skull base and multiple associated cysts. The second tumor arose along the petrous ridge, with a large intracranial component. The CT, MR imaging, angiographic, histologic, and electron microscopic ...
Huang P P - - 1997
OBJECTIVE AND IMPORTANCE: Although the differential diagnosis of intracranial lesions in patients who have tested positive for human immunodeficiency virus is extensive, toxoplasmosis, lymphoma, and progressive multifocal leukoencephalopathy comprise approximately 90% of such cases. Cytomegalovirus infection of the central nervous system may be difficult to diagnose and rarely presents as ...
Lo P A - - 1997
Sinus pericranii is an unusual and rare condition characterized by an abnormal communication between an intracranial venous sinus and the extracranial venous circulation. Patients are usually children and often asymptomatic, presenting only when cosmetic concerns are raised by the parents or the presence of a scalp lump is noted. The ...
Pelkey T J - - 1997
We report the earliest in utero presentation of a 'giant' glioependymal cyst detected on routine prenatal ultrasound at 22 weeks estimated gestational age. The clinicopathologic features of these rare lesions are reviewed as well as previous reports of glioependymal cysts detected in utero. The effects of large intracranial cysts on ...
Mori T - - 1997
The purposes of this study were to determine the optimal time for initial follow-up angiography, the restenosis rate after successful intracranial percutaneous transluminal cerebral angioplasty (PTCBA), and finally to identify lesion-specific characteristics for predicting successful angioplasty. Thirty-five patients underwent PTCBA with follow-up angiography 3 and 12 months later. Although 27 ...
Van Hemert R L - - 1997
Magnetic resonance angiography (MRA) and venography (MRV) are useful tools in the diagnosis and analysis of both intracranial and head and neck tumors. These procedures illuminate the three-dimensional relationships of the tumors and the adjacent cerebral vasculature. Contrast administration allows further analysis of these lesions. Research continues to improve the ...
Lee T T - - 1997
Intraventricular neoplasms of the third ventricle represent a small minority of intracranial tumors. Furthermore, few cases of solitary, third ventricular glioblastoma multiforme were reported in the literature. The authors report a case of a fifty-nine year old man who presented with progressive gait disturbance, disorientation, diffuse headache, and vomiting. Computed ...
Duong D H - - 1997
Intravascular papillary endothelial hyperplasia (IPEH) is a rare benign reactive lesion usually found in thrombosed subcutaneous blood vessels. It uncommonly occurs in the central nervous system and may be mistaken for a more malignant type of tumour such as angiosarcoma. We present a first case of multiple IPEH occurring intracranially ...
Bejjani G K - - 1996
OBJECTIVE AND IMPORTANCE: 'Trilateral retinoblastoma' designates the association of bilateral retinoblastomas with an ectopic (non-metastatic) intracranial primitive neuroectodermal tumor (PNET). Although the intracranial tumor, usually located in the pineal region, is seen 2-3 years after discovery of the bilateral ocular tumors, variant presentations do occur. The intraocular tumor can be ...
Davies M A - - 1996
A number of classification schemes for intracranial dural arteriovenous fistulas (AVFs) have been published that claim to predict which lesions will present in a benign or aggressive fashion based on radiological anatomy. We have tested the validity of two proposed classification schemes for the first time in a large single-institution ...
Chua R - - 1996
OBJECTIVE AND IMPORTANCE: There are increasing reports of nasal sinus mucopyoceles eroding the base of the cranium and causing the rapid onset of neurological complications. Uncommon presentations can mimic tumors, but the infectious nature mandates an urgent surgical decompression. It is important to document these uncommon presentations. CLINICIAL PRESENTATION: A ...
Ravikumar C - - 1996
A rare case of basal ganglionic angioleiomyoma in a 12-year-old girl is reported. She presented with features of raised intracranial tension, multifocal seizures, left hemidystonia and apraxia of eyelid closure. Cranial CT scan showed a large hypodense lesion with an enhancing mural nodule in the region of head of the ...
Pensler J M - - 1996
Ten patients with gliomas were treated between 1977 and 1993. Three of the lesions (30 percent) exhibited intracranial extension. Fifty percent (2 of 4) of the intranasal lesions exhibited intracranial extension. Effective removal of the lesion required manipulation of nasal bones in intranasal lesions and extranasal lesions with intranasal extension. ...
Ng S H - - 1996
A 35-year-old woman presented with a 6-month history of intermittent headaches, vomiting and dizziness. CT showed a plaque-like mass with tiny calcifications along the surface of the left frontal lobe. The mass exhibited heterogeneous enhancement with a few low-density foci. Underlying sulcal obliteration and enhancement and white matter oedema were ...
Zou Y - - 1996
BACKGROUND: Artificial Neural Network (ANN), as a potential powerful classifier, was explored to assist psychiatric diagnosis of the Composite International Diagnostic Interview (CIDI). METHOD: Both Back-Propagation (BP) and Kohonen networks were developed to fit psychiatric diagnosis and programmed (using 60 cases) to classify neurosis, schizophrenia and normal people. The programmed ...
Schutte C M - - 1996
This report describes five patients with intracranial tuberculosis (TB): four with tuberculous meningitis and one with intracranial tuberculomas. In all cases the diagnosis was confirmed by excision biopsy of an enlarged cervical or axillary lymph node. The biopsies showed caseating granulomas and acid fast bacilli, confirming the diagnosis of TB ...
Hwang D H - - 1996
BACKGROUND: Colloid cyst of the third ventricle has rarely been reported in the ophthalmic literature. The incidence is about one per 1000 in asymptomatic patients and accounts for 0.55 to 2 percent of all intracranial tumors. Although it is an uncommon benign tumor, nearly half of symptomatic patients present with ...
Zimmerman J R - - 1996
This case shows an unusual intracranial cause of chronic headache in a 30-year-old female. Computerized tomography and magnetic resonance imaging were used to demonstrate an intracranial, dermoid cyst located in the left middle cranial fossa. Droplets of fat-like material, which leaked from this cyst, were present in the basilar subarachnoid ...
Koike Y - - 1996
In two cases intracranial extension of mucoceles of the paranasal sinus was safely removed by intranasal evacuation and drainage of the lesions located in the paranasal sinus. The diagnosis was ascertained in both cases via intranasal approach. In addition, the volume of the intracranial lesions was reduced. This procedure is ...
Brunori A - - 1996
Paranasal sinuses osteomas are known as biological benign tumours. However, due to the peculiar anatomical relationships, patients harbouring an osteoma within the frontal sinus are exposed to serious orbital and intracranial complications. We report two unusual cases of intracranial mucocoeles associated with frontal osteomas. In one of them, a superposed ...
Choudhury A R - - 1996
Two neonates are presented who had glial heterotopias of the nose, one with and the other without intracranial connections. It is important to distinguish these malformations from nasofrontal encephaloceles in order to avoid inadvertent exposure of the brain during surgical removal of the mass lesions. The distinction between them may ...
Liu A - - 1996
Twelve cases of intracranial primary myxomas are discussed. The mean age at presentation was 34.2 years and seven patients were male. All tumours originated extradurally from the skull base. Most of the patients had a chronic clinical course, characterized by unilateral dysfunction of one or several cranial nerves. It was ...
Levy R A - - 1996
A 46-year-old woman presented with massive left temporal lobe intraparenchymal and diffuse subarachnoid hemorrhage on CT. Lack of enhancement excluded intermediate and high-grade primary tumor or metastasis as likely causes. At surgery, a fibrovascular left temporal lobe mass adherent to the dura proved to be a pleomorphic xanthoastrocytoma. The unusual ...
Schievink W I - - 1995
Autosomal dominant polycystic kidney disease (ADPKD) is a systemic disorder well known for its association with intracranial aneurysms. A series of patients with ADPKD who were screened for the presence of an intracranial aneurysm were reviewed and found to include an unexpectedly high number with intracranial arachnoid cysts. Among 247 ...
Irfan A - - 1995
An analysis of 386 cases of Intracranial Space Occupying Lesions (SOL) including neoplastic and inflammatory masses diagnosed and treated at Jinnah Postgraduate Medical Centre, Karachi over a period of 2 years is presented. C.T. Scan and MRI were used for the diagnosis of midline, multiple and very small lesions. S.O.L. ...
Pagenstecher A - - 1995
The authors present a case of an intracranial tumor in a 7-year-old girl leading to increasing hemiparesis. The lesion arose from the dura and consisted of fibroblasts in a myxoid matrix. The diagnosis of cranial fasciitis was made. The histological, immunohistological, and ultrastructural features of the tumor are described and ...
Maraire J N - - 1995
Intracranial cavernous malformations are vascular anomalies consisting of endothelium-lined caverns filled with blood at various stages of thrombosis and organization and separated by a collagenous stroma devoid of mature vessel wall elements. They occur in an estimated 0.45 to 0.9% of the population, with male and female patients equally affected ...
Alemayehu S - - 1995
Although most panic attacks appear to be primary psychiatric disturbances, some evidence suggests a biologic basis for panic disorder, possibly associated with temporal lobe dysfunction. Fear is a common affective change associated with some complex partial seizures (CPS) originating from the right temporal lobe. We describe a previously unreported association ...
Verhey LJ - - 1995
Stereotactic radiosurgery was introduced more than 40 years ago as a way of treating various intracranial lesions without recourse to open-skull surgery. Since then, it has been extended both in terms of the radiation modalities that have been used and the types of lesions treated. Each radiation modality has its ...
Huang C C - - 1995
Although psychiatric symptoms are not rare in Wilson's disease (WD), their association with epileptic seizures has not been reported. We describe three patients with such clinical manifestations who had predominantly cerebral white matter lesions in the frontal lobe. There were two men and one woman with ages ranging from 20 ...
Van Geertruyden J P - - 1995
A posterior midline cutaneous lesion in the scalp of a 15-month-old child was excised. Clinical examination, extensive investigations and finally surgery revealed no intracranial connection. Histologically, the lesion was composed of well differentiated meningeal, glial and cerebral tissues, establishing it to be heterotopic brain tissue. Even when all preoperative procedures ...
Friedland B - - 1995
A 42-year-old female in whom intracranial calcifications were incidentally identified on a lateral cephalogram is presented. Follow-up CT scans and her social history led to the most probable diagnosis of cysticercosis, an infestation by larva of the tapeworm Taenia solium, of the brain. A differential diagnosis of intracranial calcifications on ...
Weston P - - 1995
Benign intracranial hypertension is a condition of obscure aetiology which presents with episodic headaches and nausea. It is a diagnosis based on the exclusion of other intracranial pathology and computed tomography is usually normal. We present a case of gliomatosis cerebri which was initially diagnosed and treated as benign intracranial ...
Rainov N G - - 1995
The case of a 30-year-old male patient is presented who was admitted with a 3-month history of elevated intracranial pressure and reduced-hearing on the right. CT revealed hydrocephalus due to displacement of the 4th ventricle by a large non-enhancing cerebellar mass with calcifications. MRI sequences showed a space-occupying lesion within ...
Honegger J - - 1995
BACKGROUND AND OBJECTIVE: With regard to intracranial tumours, elevated hCG in CSF or serum has been considered to be specific for germ-cell tumours. Recently however, elevated hCG has also been shown to be present in cyst fluid and CSF of patients with craniopharyngiomas. While germ-cell tumours are generally non-cystic, the ...
Bourekas E C - - 1995
Intracranial hypotension, which is most commonly caused by lumbar puncture, can lead to intense meningeal enhancement, which resolves on its own once the intracranial hypotension has been corrected. The characteristic clinical presentation of severe postural headaches with a low opening CSF pressure on subsequent lumbar puncture and a history of ...
Choudhury A R - - 1995
A 5-year-old girl presented with a 1-year history of a subcutaneous swelling in the right parietal region. There were no cerebral symptoms or signs. Plain X-ray of the skull showed a lytic bony lesion with sclerotic margin. Computed tomography showed a hypodense, osteolytic lesion with thinned and bulged inner and ...
Kurimoto M - - 1995
A case with multiple intracranial germinomas involving basal ganglia and corpus callosum is presented. Clinical and sequential neuroradiological studies demonstrated the entire course of multiple tumour development. These findings suggested that the multiple tumours were intracranial metastatic deposits from primary germinoma in the pineal body. A common primary pineal or ...
Robertson P L - - 1995
The presentation, radiographic findings and course of 17 children with MRI-documented intrinsic midbrain lesions are reviewed. The anatomic centers of all the lesions were tectal, peritectal, or tegmental. Lesions centered at the pineal gland were excluded. Signs of increased intracranial pressure from hydrocephalus requiring shunt placement were present in 14 ...
Munckhof W J - - 1994
OBJECTIVE: To report the first case of cerebral sparganosis diagnosed in Australia. CLINICAL FEATURES: A 23-year-old East Timorese refugee, whose diet before migration included raw snakes and frogs, presented with a generalised tonic-clonic seizure and a nine-month history of episodic left hemianaesthesia. Computerised axial tomography of the brain showed a ...
Som P M - - 1994
PURPOSE: To determine whether the MR finding of cysts along the intracranial margin of sinonasal esthesioneuroblastomas can be considered to suggest this tumor. METHODS: MR scans of 54 patients who had sinonasal lesions with intracranial extension were examined specifically for cysts along the intracranial margins of the lesions. RESULTS: Only ...
Yamakawa H - - 1994
A 69-year-old male with an intracranial bullet retained in the right occipital lobe for 45 years presented with epileptic seizure occasionally accompanied by visual hallucinations. Neurological examination revealed left homonymous hemianopsia and right hearing loss, and electroencephalography showed slow discharges localized in the lesion. The bullet was removed together with ...
White A E - - 1994
Intracranial tuberculoma has become a rarity. It remains a curable lesion that responds well to medical therapy. Although diagnosis in developed countries is often made only postoperatively, early and effective treatment can be instituted if a high index of suspicion is maintained and diagnostic criteria are looked for. A case ...
Hacker D C - - 1994
BACKGROUND: Nasal dermoid sinus cysts are rare congenital lesions that result from aberrant embryonal development. Cases of nasal dermoids associated with intracranial extension have been reported in the past, but have almost always occurred in children. METHODS: One case of a nasal dermoid cyst with intracranial involvement in a 56-year-old ...
Mezue W C - - 1994
Six cases of nasopharyngeal carcinoma presenting primarily to the neurosurgical service of the University of Nigeria Teaching Hospital as intracranial subtemporal masses are discussed. This mode of initial presentation is very rare. The clinical features are described and the need to examine and biopsy the nasopharynx in cases of intracranial ...
Pollack I F - - 1994
The authors report three cases of histologically benign intracranial astrocytomas that developed in children and disseminated within the neuraxis. Multicentric disease was evident at the time of diagnosis in two of these patients, one of whom subsequently developed peritoneal seeding of tumor after placement of a ventriculoperitoneal shunt. To our ...
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