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Results 451 - 500 of 680
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Rosser S V - - 1992
Flaws, biases, and ethical problems surrounding research and diagnosis may lead to inappropriate or inequitable treatments that exacerbate or fail to improve the misery that some individuals face due to their psychiatric conditions. Possible androcentric biases in the choice and definition of categories for diagnosis available in DSM-III-R may in ...
Kuhn M J - - 1992
The radiological findings associated with alloimmune thrombocytopenia have not been well described. We present two such cases diagnosed in utero by ultrasound and discuss the radiographic findings of intracranial hemorrhage and hydrocephalus secondary to alloimmune thrombocytopenia. An awareness of this entity and its early diagnosis and intervention may greatly reduce ...
Bhattacharjee M B - - 1992
An unusual case of an isolated histioproliferative lesion arising from the suprasellar region is described. The presence of lymphophagocytosis suggested that this represented an extranodal intracranial form of sinus histiocytosis with massive lymphadenopathy.
Lyons B M - - 1992
Inverting papilloma is a locally aggressive neoplasm; however, intracranial extension is very rare. The authors herein report a case of massive inverting papilloma with intracranial extension and an associated frontal sinus mucocele, causing marked frontal lobe compression. Treatment consisted of combined anterior craniofacial resection. Magnetic resonance imaging provided accurate preoperative ...
Nagayama M - - 1992
This is the first report to describe the coexistence of two rare diseases, intracranial paramedian hourglass-shaped dermoid and steatocystoma multiplex. A 46-year-old female with a history of steatocystoma multiplex, bradydactylies and kyphosis showed oscillopsia, ataxia and hemifacial spasm. MRI findings suggested a giant dermoid cyst extending from the left middle ...
Horn M - - 1992
Clinical, histopathological, and ultrastructural features of an extended intracranial malignant neoplasm are presented. Following incomplete extirpation of a large epidural tumor at the temporal base of the skull, the 21-year-old male patient suffered from several local recurrences and died at the age of 27. The neoplasm was defined by its ...
Paulus W - - 1992
We present the case of a 7-year-old boy who had a solitary mass within Meckel's cave that recurred 6 weeks after the initial resection. The histological, immunohistochemical, electron-microscopical, and molecular genetical features established the lesion's histiocytic nature. Our findings showed that it was closely related to juvenile xanthogranuloma, a benign ...
Karakhan V B VB Department of Neurology and Neurosurgery, Moscow Medical Stomatological Institute, - - 1992
The possibilities of endoscopic operative procedures in preformed and artificial intracranial and intracerebral cavities are described. Endoscopic investigations were carried out on 166 cadavers; death was due to extracranial pathology and severe brain injury. 132 patients with intracranial lesions were operated on endoscopically. An extended description of endofiberscopic intracranial topographical ...
Fierro B - - 1991
A case presenting with clinical features of ocular myasthenia and a false-positive edrophonium test is reported. Brain CT and MRI scan revealed a pineal region tumor histologically verified as germinoma. We recommend evaluating patients with clinical features of myasthenia gravis (MG) confined to the ocular muscles for intracranial mass lesions.
Dutton D A - - 1991
A 28-year-old woman developed symptoms of raised intracranial pressure associated with an obstructive hydrocephalus following a spinal anaesthetic administered for a Kiellands rotation forceps delivery. A diagnosis of an unverified pineal body tumour was made after computerised axial tomography scanning and the symptoms were effectively treated by the insertion of ...
Ellis M E - - 1991
A case of extensive intracranial tuberculoma is presented. The patient had been treated for 5 years with a standard antituberculosis regimen but she had been grossly non-compliant. This had led to emergence of multi-resistant Mycobacterium tuberculosis producing progressive disease and extensive cranial nerve damage and proptosis. The unusual CT and ...
Narbone M C - - 1991
A 69 year old man complaining of a cluster-like headache is reported. CT scan showed a median intracranial calcified lesion. Two main considerations are: 1) the importance of searching for an underlying structural lesion in patients with an "atypical" cluster headache; 2) the possible significance of a lesion localized close ...
Baldwin H E - - 1991
The differential diagnosis of subcutaneous lesions of the scalp is extensive and includes many tumors with intracranial and intraosseous extension. The vast majority of lesions seen by the dermatologist will be benign. However, certain lesional characteristics increase the likelihood of a serious disorder and these must be evaluated preoperatively. We ...
Worthington C - - 1991
We describe a system for stereotactic radiosurgery with a linear accelerator. This technique allows treatment of small (less than 40 mm diameter) intracranial lesions, including vascular malformations, and primary and metastatic tumors that are deep within the brain or in areas not amenable to open surgery. A beam of ionizing ...
Wilson M - - 1991
During the 3 years that the enzyme-linked immunoelectrotransfer blot (EITB) assay for the diagnosis of human cysticercosis has been in use at the Centers for Disease Control, 50 patients with both pathologically confirmed neurocysticercosis and computed tomographic (CT) or magnetic resonance imaging (MRI) scan results were identified. Of 32 patients ...
Kondziolka D - - 1991
Stereotactic radiosurgery using the gamma unit represents a unique neurosurgical treatment method for the management of selected intracranial vascular malformations and tumors. During a closed-skull single-session procedure that focuses 201 individual beams of gamma irradiation, a high-radiation dose is delivered to the lesion, with a steep dose fall-off peripherally. In ...
McGann G M - - 1991
The cranial computed tomographic (CT) scans reported as showing metastatic disease in patients with malignant melanoma (MM) seen at the Westminster Hospital over a 5 year period were reviewed. Ninety-eight patients with intracranial metastatic MM were identified. Twelve had an initial scan which was reported as normal and particular attention ...
Paller A S - - 1991
Nasal dermoids, gliomas, and encephaloceles are uncommon congenital lesions that result from aberrant embryologic development. We have treated 46 children with these nasal lesions. In view of the potential intracranial connection, patients are at risk for intracranial infection, and early surgical correction is thus imperative. Neuroimaging studies may help to ...
Vaquero J - - 1991
The pineal region is one of the rarest sites in the brain for metastatic involvement of systemic malignant tumors. A review of the literature shows that approximately 70 such cases have been reported previously, and most of them were diagnosed by autopsy. In this brief report we describe three cases ...
Katayama Y - - 1991
Ectopic intracranial retinoblastomas are rare. These tumors usually occur in the pineal, parasellar, or suprasellar regions several years after the successful treatment of ocular retinoblastomas with no evidence of direct extension or distant metastasis. We report here a case of ectopic retinoblastoma occurring within the third ventricle. The tumor was ...
Wardinsky T D - - 1991
Nasal dermoid and sinus cysts (NDSC) are uncommon congenital anomalies that may have intracranial extension and can be associated with other anomalies. We identified 22 patients in a retrospective review of cases diagnosed with NDSC at our institution over the past 10 years. Nine (41 percent) had associated anomalies and ...
Saito R - - 1990
Ceruminous gland tumors (ceruminomas), which usually involve the external auditory canal, are rare. A case of ceruminoma invading the temporal bone and histologically proven to be papillary adenoma is presented. The tumor recurred and invaded intracranially after subtotal removal and was finally diagnosed as adenocarcinoma. The importance of early diagnosis ...
Greenlee J E - - 1990
CSF evaluation is the single most important aspect of the laboratory diagnosis of meningitis. Analysis of the CSF abnormalities produced by bacterial, mycobacterial, and fungal infections may greatly facilitate diagnosis and direct initial therapy. Basic studies of CSF that should be performed in all patients with meningitis include measurement of ...
Nagatani K - - 1990
A 58-year-old female was admitted to our hospital with nausea, vomiting, and gait disturbance of 1 year duration. Postcontrast computed tomographic scans demonstrated enhanced lesions in the left cerebellopontine angle (CPA), the retrosellar region, the right parasellar region, and the left parietooccipital convexity. The left parieto-occipital tumor was totally removed ...
Bale P M - - 1990
Sequestrated meningocele of the scalp has seldom been reported and is difficult to diagnose. Clinically it resembles dermoid cyst, hemangioma, or alopecia; radiographs and computed tomographic scans reveal no cranial bone defect, and surgery discloses no communication with the cranial cavity. Histologically, the lesion is characterized by a loose arrangement ...
Miyachi S - - 1990
The authors describe a 42-year-old woman with systemic xanthogranulomatosis and bilateral intraorbital tumors, who subsequently developed multiple lesions of the intracranial dura mater, spinal cord, retroperitoneum, pericardium, and mediastinum. Systemic xanthogranulomatosis is histologically similar to systemic Weber-Christian disease, except for the absence of subcutaneous panniculitis. Immunohistochemical studies suggest that this ...
Snyder H S - - 1990
The authors present a patient with a traumatic epidural hematoma who complained only of headache and presented to the emergency department 48 hours after a fall. Mental status and neurological examination were normal. This delayed presentation is more commonly seen when a subdural hematoma is present but may result from ...
Thacker A K - - 1990
We report a successfully managed case of neuroleptic malignant syndrome in which the diagnosis was delayed by one week because of the absence of an established psychiatric disease. A high degree of clinical suspicion must be maintained if the diagnosis of this rare, curable but often fatal, complication of neuroleptic ...
Truwit C L - - 1990
Intracranial lipomas are uncommon lesions whose development remains poorly understood. To clarify the anatomic and embryologic features of intracranial lipomas, we retrospectively reviewed the MR scans of 42 patients with 44 intracranial lipomas. Interhemispheric lipomas were the most common, accounting for 45% of cases. The remainder of the lesions were ...
Feldmann E - - 1990
The distribution of cerebrovascular lesions is affected by race. Blacks and Japanese have more intracranial occlusive cerebrovascular disease, while whites have more extracranial disease. Despite a high incidence of stroke in China, there are few formal studies of the distribution of vascular occlusive disease in Chinese populations. We compared clinical ...
Gawel M J - - 1990
We present further evidence for a sympathetic defect of vasomotor control of the anterior cerebral artery (ACA) on the side of the headache during cluster periods. In 119 cluster headache patients, utilizing transcranial Doppler, we measured CO2 reactivity of the major intracranial vessels, in and out of cluster. Reactivity was ...
Negovetic L - - 1990
The case of a young woman (20 years) with a gigantic intracranial hydatid cyst (110 x 90 x 65 mm) is presented. The first manifestation was a grand mal seizure followed by symptoms of raised intracranial pressure. The origin of the cyst was in the diploe of the right cheek, ...
Kamiya K - - 1990
A 76-year-old female with an intracranial epidural abscess having a long history of about 30 years is presented. Craniogram, carotid angiogram, and computed tomographic scan showed a huge calcified lesion with hyperostosis at the right parietal region. The abscess appeared to have granulated and calcified due to long-lasting stagnation of ...
Grabel J C - - 1990
A case of metastatic pheochromocytoma is reported in which the diagnosis was determined on the basis of a painless scalp mass. Subsequent to biopsy and histological diagnosis, further investigations revealed a large skull lesion with intracranial extension, an adrenal mass, and various catecholamine abnormalities. The radiological characteristics and operative findings ...
Sickler G K - - 1990
This is a report of extensive intracranial papillary endothelial hyperplasia in a 12-day-old twin. The infant presented with progressive macrocephaly, anemia and hydrocephalus. An MR image showed a large (6 x 5 cm) mass in the right middle cranial fossa. Histologic examination of the resected mass revealed multifocal hemorrhage, organizing ...
Dao D A - - 1990
In North America, central nervous system involvement by tuberculosis is uncommon. This patient review describes the clinical and radiological features of this unusual neurologic lesion. Special emphasis is given to the methods of arriving at the correct diagnosis, to the efficacy of combination antituberculous therapy, and to the possibility of ...
Crawford R - - 1990
Intracranial dermoids are rare and are usually associated with cutaneous scalp lesions. Five hundred forty-two scalp lesions were treated in a 22-year period, and were associated with intracranial lesions in three cases. High-risk cases can be identified by clinical and radiological features, confirmed by a computed tomography scan, and then ...
Sabin H I - - 1990
A simple technique of stereotactic craniotomy and intraoperative lesion localisation that uses the Brown-Robert-Wells (BRW) stereotactic frame is presented. The method optimises craniotomy placement and facilitates localisation of small intracerebral lesions. Using the system, 16 patients have had resection of intracranial neoplasms from deep and/or eloquent areas of the brain ...
Ernestus R I - - 1990
Intracranial ependymomas tend to spread along on the liquor pathways and thus to seed subarachnoid metastatic implants. According to autopsy data, spinal seeding can be expected in 25% of cases subsequent to surgery of the primary tumor. Analysis of four of our own cases (out of 125 primary intracranial ependymomas) ...
Plate K H - - 1990
Two proliferation markers, silver stained nucleolar organizer regions (AgNOR) and immunoreactivity with Ki-67, were used to assess the proliferative activity in 80 smear preparations from neurosurgically removed intracranial tumours. These included 45 gliomas, 18 meningiomas, 8 metastases and 9 others. We found a remarkably close correlation between the results obtained ...
Mizoguchi K - - 1990
A 57 year-old woman with benign exertional headaches induced by swimming is described. The headaches were bilateral, throbbing and occurred while swimming. She had a history of occasional similar headaches while straining during bowel movements. The neurological examination and computed tomographic (CT) scanning were normal. The electroencephalogram (EEG) had diffuse ...
Yamada H - - 1989
A 35-year-old man was admitted because of loss of hearing in the left ear. The patient had been known to have familial hypercholesterolemia for at least 12 years. Computerized axial tomography of the brain showed a large tumor occupying in the left mastoid region. Surgical intervention revealed xanthogranuloma, histologically. Xanthogranuloma ...
Blitzer A - - 1989
Massive fibro-osseous lesions of the frontal and ethmoidal sinuses are rare. If left untreated, these lesions can produce chronic infection, orbital complications, and/or intracranial events. In the past, resection of these lesions has usually been subtotal and a risk of damage to intracranial structures existed, particularly to the dura, due ...
Moorthy G - - 1989
Myasthenia gravis (MG) commonly presents with weakness and fatigability of the lids and extraocular muscles, which respond to treatment with anticholinesterase medication. However, certain intracranial mass lesions may mimic these features of MG; alternatively, MG may mask the signs of a coexistent intracranial mass. We describe 8 patients originally diagnosed ...
Taylor G A - - 1989
Neonates treated with extracorporeal membrane oxygenation are at high risk for the development of intracranial hemorrhage and infarction. The appearance of these lesions on cranial sonography is often unusual and may be confusing. We compared the findings at autopsy with premorbid cranial sonograms in 17 nonsurviving neonates to define better ...
Chan J K - - 1989
This report describes a unique astrocytic lesion of the nasal cavity that was connected to a frontal lobe astrocytoma via the eroded cribriform plate. The nasal lesion probably resulted from downward extension of the cerebral astrocytoma. Other possibilities included coexistence of nasal glial heterotopia and intracerebral astrocytoma, and nasal glial ...
Tomei G - - 1989
Primary intracranial rhabdomyosarcoma (RMS) is a rare tumor in infancy and childhood that is found in various locations in the central nervous system. The clinical course worsens rapidly, and the final outcome is poor, with a median survival time of 8-10 months. Invasion of the meninges, spontaneous intratumoral bleeding, spinal ...
Gartman J J JJ - - 1989
A 54-year-old woman who had symptoms of intermittent meningeal irritation and hypopituitarism was found to have a sellar mass histologically consistent with pseudotumor. The lesion appears to have originated in the sphenoid sinus and subsequently to have spread intracranially, causing bony erosion. To our knowledge, this is the first description ...
Daruna J H - - 1989
Event related potentials were recorded from patients with unilateral temporal lobe lesions and healthy volunteers. Subjects were required to silently count on infrequent target tone interspersed among presentations of a non-target tone, with an interval between tones that was relatively long and variable (6-10s). Under these task conditions, the patients ...
Ko S M - - 1989
Four cases of cerebral tumours presenting with psychiatric symptoms were referred to the psychiatrist for management. They displayed some degree of cognitive impairment, notably impaired memory for recent events, and nominal aphasia. Clinical neurological examinations were generally unremarkable with no evidence of focal signs or features of raised intracranial pressure. ...
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