Search PubMed⌕ Search

Biomedical subjects

M Rovira

Publications and source records attributed to M Rovira.

At least 109 records · Page 6Linked to original sources
PubMed1988

MRI and CT of ankylosing spondylitis with vertebral scalloping.

Three cases of cauda equina syndrome in long-standing ankylosing spondylitis are reported. In all, vertebral scalloping and dural ectasia were confirmed by magnetic resonance imaging and computed tomography. MRI showed widening of the dural sac with signal intensity corresponding to cerebrospinal fluid. CT demonstrated asymmetrical lesions of the posterior elements of the lumbar spine. Myelography was not felt necessary to confirm the findings.

Aged↗
PubMed1988

Aneurysms of the posterior cerebral artery in children.

Two cases of aneurysms of the posterior cerebral artery, diagnosed by CT and confirmed angiographically, are reported. In the first case, the aneurysm was discovered fortuitously. The second began with intracerebral haemorrhage. A review of the literature is reported.

Cerebral Angiography↗
PubMed1988

Gliomatosis cerebri with formation of a glioblastoma multiform. Study and follow-up by magnetic resonance and computed tomography.

A case of gliomatosis cerebri studied by computed tomography (CT) and magnetic resonance imaging (MRI) is reported. Follow-up by serial CT revealed a right parieto-occipital glioblastoma. Gliomatosis cerebri and multiform glioblastoma were demonstrated by histologic study. Anatomic and CT data were correlated. The role of CT and MRI in the diagnosis of this disease was evaluated and case studies of CT published in the literature were reviewed.

Adult↗
PubMed1988

Vertebral arch tuberculosis in two human immunodeficiency virus-seropositive heroin addicts.

We studied two cases of disseminated tuberculosis with vertebral arch involvement in drug addicts seropositive for human immunodeficiency virus. The first patient developed a paraplegia while he was recovering from a meningeal tuberculosis. On the abdominal plain roentgenogram, the right transverse process of L-2 was absent, and a computed tomographic scan revealed destruction of the right vertebral arch together with a collection in the paravertebral area. The second patient had miliary tuberculosis and complained of lumbar pain. The radiologic findings were similar to those in the first case, but at the L-4 level.

Adult↗
PubMed1984

Cerebral computed tomography in maple syrup urine disease.

Maple syrup urine disease (MSUD) is an inherited metabolic disorder due to decreased decarboxylation of branched chain keto acids triggering an accumulation of leucine, isoleucine, and valine. We describe two infants with biochemically confirmed MSUD in whom computed tomography (CT) revealed cerebral edema. In one of these cases repeat CT 40 days after institution of appropriate therapy revealed that the edema had disappeared and the ventricles had enlarged.

Brain Edema↗
PubMed1980

Study of tuberculous meningitis by CT.

Computed tomography is a very valuable method by which the pathogenic evolution of tuberculous meningitis may be followed, thereby facilitating its differential diagnosis and controlling the efficiency of therapy. The initial miliary tuberculosis in the brain, very often unaccompanied by neurological symptoms, may offer very evident CT images. CT may also demonstrate the fibrogelatinous exudate which fills the basal cisterns and surrounds the arterial vessels which cross this region. Because of this, secondary arteritis is frequent and may be indirectly detected by CT in the form of foci of ischemic infarcts. Tuberculomas may be multiple, and are found equally in the cerebral and the cerebellar parenchyma. These tuberculomas present different images on CT, depending on the evolution of the disease at that moment. Hydrocephalus is a common complication of TM and is caused by a lack of reabsorption of the cerebrospinal fluid, or by an obstructive lesion in the ventricular drainage pathways due to a tuberculoma. This complication is usually easily identified by CT, which, moreover, permits the control of its evolution.

Adult↗
PubMed1979

Morphological and cytochemical study of a hypothalamochiasmatic perivascular neuronal system.

The topographical localization and some cytochemical characteristics of groups of perivascular neurons in the hypothalamus and in the optic chiasma have been studied. In the anterior hypothalamic area there are neuronal groups located around the blood vessels which penetrate the optic chiasma still associated with neurons. These perivascular neurons show some characteristics similar to those observed in neurosecretory hypothalamic neurons, but differ from them in that they show a greater intensity of thiaminopyrophosphatase and nucleoside-diphosphataseactivities. It is suggested that these neuronal groups may constitute a special hypothalamochiasmatic-perviscular-neurosecretory system (H. Ch. P. N. S.).

Acetylcholinesterase↗
PubMed1978

Contribution to the study of the arterial nutrition of the cervical spinal cord.

The feeding of the anterior spinal artery of the cervical cord is very poor. Angiographic studies have shown that only two to three radiculomedullar arteries assure the feeding of this arterial axis. Since it is possible that smaller feeding arteries exist, which are not visible on a conventional X-ray study, we have reviewed cases with arteriovenous aneurysms or vascularized tumors in the cervical region, and obstructions of the vertebral arteries. In these cases, the feeding arteries may be hypertrophic. In spite of being hypertrophic, their number is not increased, and the statistical proportion is the same as in the studies carried out in normal cases.

Adult↗
PubMed1976

Etiology of moya moya disease acquired or congenital.

Nine cases of Moya Moya disease collected since 1968 are presented. The absence of inflammatory signs and the high percentage of congenital malformations is emphasized. However, despite the post-mortem findings in one of the cases, no etiologic factor has been conclusively demonstrated.

Adolescent↗