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Biomedical subjects

M Savoiardo

Publications and source records attributed to M Savoiardo.

At least 73 records · Page 4Linked to original sources
PubMed1986

Mobile myelographic filling defects: spinal cysticercosis.

Cysticercosis usually affects the brain and is easily demonstrated by CT. Spinal cysticercosis is much rarer and is usually diagnosed only at surgery. Myelographic demonstration of multiple rounded filling defects, some of which were mobile, allowed diagnosis of spinal extramedullary cysticercosis in an unsuspected case. The literature on spinal cysticercosis is briefly reviewed. Diagnosis is important in view of the recent development of medical treatment.

Arachnoiditis↗
PubMed1986

Radiologic demonstration of syringobulbia. Report of 8 cases.

Out of 75 syringomyelia cases, 8 had a syringobulbic extension. The cavity was demonstrated by magnetic resonance imaging (3 cases), syringography (3 cases), ventriculography (2 cases), and myelo-CT (2 cases). The cavities could be separated into 2 groups. In the first (5 cases) the cavity extended from the floor of the fourth ventricle, anterolaterally (3 cases) or anteriorly in the midline (2 cases). The communication with the fourth ventricle was usually wide. In the second group (3 cases), the syringobulbic cavity was located anteriorly; 2 of the 3 had no communication with the fourth ventricle and had an exceptional cranial extension (syringocephalia). In selected cases, invasive studies may help to recognize the connections of the cavities, and thus be useful in planning the surgical treatment.

Adolescent↗
PubMed1984

Divry-Van Bogaert syndrome. Clinical and ultrastructural findings.

A case of a progressive disease with epilepsy, marble skin, and roentgenographic evidence of tapering of the distal carotid branches with corticomeningeal angiomatosis was studied. The clinical course, angiographic findings, and skin biopsy results justified the diagnosis of noncalcifying venous capillary angiomatosis, or Divry-Van Bogaert syndrome.

Adult↗
PubMed1983

Unusual computerized tomography appearance of a carotid-cavernous fistula. Case report.

A case of carotid-cavernous fistula characterized by an unusual computerized tomography (CT) pattern is reported. The CT study showed a hyperdense lesion in the right frontoparietal region, and angiography demonstrated an uncommonly large venous network in the same area. After embolization by a detachable balloon technique, these findings gradually resolved. The CT pattern was probably due to the unusually large venous drainage and to the related ischemia of the brain parenchyma.

Arteriovenous Fistula↗
PubMed1982

Intracranial neoplasms in children: the effect of computed tomography on age distribution.

In a review of all children with brain neoplasms evaluated at a large pediatric center during a three-year period following the introduction of computed tomography (CT), a change was observed in the age distribution at the time of clinical presentation as compared with a previous series evaluated prior to the introduction of CT. In children under six years of age, there was a highly significant trend for earlier diagnosis; within this age group, relatively more children were diagnosed in the first two years of life. Between six and twelve years of age, there was no change in frequency of brain tumor diagnosis between the two series. Above age twelve, there was again noted a highly significant increase in detection of brain tumors in the more recent series. These differences between the two series may be attributed, at least in part, to earlier referral and diagnosis since the advent of CT, although other factors cannot be excluded as possible causes of the differences.

Adolescent↗
PubMed1981

Metastases of carcinoma to intracranial meningioma: report of two cases and review of the literature.

Two cases of metastases from carcinoma to intracranial meningioma are presented. In the first case the presence of the malignant tumor was unsuspected at the time of intracranial operation. In the second case, a breast cancer had been previously removed, and unusual cranial computed tomographic findings were noted. The literature on metastases to intracranial tumors is reviewed, and the association of meningioma and carcinoma of the breast is emphasized.

Adenocarcinoma↗
PubMed1981

Gliomas of the intracranial anterior optic pathways in children. The role of computed tomography, angiography, pneumoencephalography, and radionuclide brain scanning.

Twenty-two gliomas of the anterior optic pathways in children were reviewed, and the relative merits of computed tomography (CT), pneumoencephalography (PEG), angiography, and radionuclide brain scanning were assessed. Contrast-enhanced CT scans proved to be superior in demonstrating the full extracranial extent of the lesions and spread along the optic pathways; however, PEG was more reliable with small chiasmatic lesions. Angiography rarely provided a specific diagnosis of intracranial optic glioma, but in was diagnostic when the intracanalicular or intraorbital portion of the optic nerve was involved. A protocol for neuroradiological investigation of suspected cases is proposed.

Adolescent↗
PubMed1981

Meningiomas of the lateral ventricles. Neuroradiological and surgical considerations in 18 cases.

The clinical and neuroradiological findings and the surgical results in a series of 18 patients with meningiomas of the lateral ventricles, operated on over a 23-year period, are described. This experience is compared with previously reported series and the following conclusions are drawn: 1) these tumors have no characteristic symptomatology; 2) the preoperative diagnosis should be reached by means of both computerized tomography and carotid and vertebral angiography; 3) the safest surgical approach is through a sagittal paramedian parieto-occipital cortical incision; and 4) piecemeal removal is crucial for achieving total extirpation of the tumor with minimum damage of the surrounding brain tissue and for careful intraoperative hemostasis.

Adolescent↗
PubMed1980

Hypodense area within a meningioma: metastasis from breast cancer.

A case of an intracranial meningioma containing a metastasis from breast cancer is reported. CT demostrated a hypodense area within the meningioma and angiography showed a relatively less evident blush in the same area. The correlation of the neuroradiological with the pathological findings is discussed.

Adenocarcinoma↗
PubMed1980

Spontaneous spinal epidural haematoma arising from ruptured vascular malformation. Case report.

Spontaneous spinal epidural haematomas are rare and in only about 10% of the reported cases has the vascular sources of the bleeding been detected. A case of acute cerivcal epidural haematoma, arising fro a ruptured vascular malformation, successfully operated on, is presented. Clinical, neuroradiological, and pathological findings are described in detail. Significance of postoperative selective spinal angiography is discussed.

Adult↗
PubMed1980

Oculomotor abnormalities in patients with lesions involving the tectal region.

An analysis of ocular movements was performed in four patients with retraction nystagmus and paralysis of the upward gaze. The clinical and radiological data indicate that the lesion were relatively limited to the most rostral and dorsal portion of the mesencephalon. The electrooculographic examination disclosed not otherwise obvious abnormalities of horizontal ocular movements. The most prominent defect was a tendency to perform hypometric saccades followed by multiple corrective movements. This tendency was particularly evident in saccadic movements toward a light spot unexpectedly displaced in the visual field of the subject. It is suggested that lesions responsible for retraction nystagmus can also affect the visuomotor integration mechanisms; the foveation of the target is then obtained through a typical modification of the motor strategy.

Adult↗
PubMed1978

CT, angiography, and RN scans in intracranial cavernous hemangiomas.

Nine cases of surgically verified intracranial cavernous hemangiomas are reported. A comparison is made between radionuclide brain scans, angiography, and CT studies: RN scans are sometimes superior to angiography in indicating the presence of the lesion; CT is the most informative investigation, although it does not present a specific pattern. A preoperative specific diagnosis can only be suggested on the basis of the whole complex of the information available, including the clinical history.

Adolescent↗
PubMed1978

The hypodense meningioma: report of two cases.

Cystic or necrotic hypodense areas are occasionally seen within meningiomas on CT scans. Two diffusely hypodense endotheliomatous meningiomas are reported. The low density was due to a microcystic structure, which caused a spongy appearance and consistency.

Cerebral Angiography↗