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Biomedical subjects

M Sarwar

Publications and source records attributed to M Sarwar.

At least 73 records · Page 4Linked to original sources
PubMed1980

Symptomatic cerebral histoplasmoma. Case report.

A 53-year-old man, with a past history of a thoracotomy 7 years previously, developed seizures. A computerized tomography scan with contrast medium revealed a peripheral ring-like lesion in the anterolateral part of the right parietal lobe. Pathological evaluation of the resected lesion demonstrated it to be a histoplasmoma. Although rare, a histoplasmoma should be included in the differential diagnosis of a ring-shaped lesion in a patient with previous pulmonary disease.

Brain Diseases↗
PubMed1980

CT evaluation of nonventricular CSF space disease.

Most of the central nervous system lesions betray themselves by an alteration in attenuation, ventricular shift, or a variable degree of contrast enhancement. Certain lesions, however, are predominantly or exclusively confined to the nonventricular CSF spaces. These lesions either deform these CSF space or are marked in them. Abnormal contrast enhancement helps in their identification. The spectrum of diseases include meningitis, isodense subarachnoid hemorrhage, isodense subdural hematoma, meningeal and subependymal neoplastic seeding, isodense tumors, and brain herniations.

Brain Diseases↗
PubMed1979

The Dens-Arch synchondrosis versus the Hangman's fracture.

The synchondrosis between the dens and arch of C2 is a normal structure in infants and children. It is not visible on lateral views of the cervical spine, but is routinely visible on oblique views. In such cases it has a distinct tendency to mimic a C2-arch fracture. The varying appearance of this synchondrosis and its differentiation from a true fracture of C2 are the subjects of this report.

Arthrography↗
PubMed1979

The posteriorly tilted dens. A normal variation mimicking a fractured dens.

The normal dens occasionally can be posteriorly tilted and in such cases, can mimic a fractured, posteriorly tilted, dens. Differentiation of the two conditions depends on: [1] knowledge that this normal variation of the dens occurs, and [2] demonstrating that no fracture exists. In many cases, this latter determination can be accomplished on plain films, but in other cases, laminography is required.

Axis, Cervical Vertebra↗
PubMed1978

Intracerebral venous angioma. Case report and review.

Only a few cases of angiographically demonstrated and pathologically proved cases of venous angiomas have been published. In contrast to the scarcity of recorded cases of angiographically studied venous angiomas, they are the most common incidentally encountered angiomatous lesions at autopsy. Their angiographic characterization, though highly suggestive, is not pathognomonic. The angiographic characteristics include small radiating veins that drain into a larger transcerebral vein that in turn empties into a dural sinus; blush and early draining veins also may be seen. The differential diagnosis includes telangiectasia, infiltrating glioma, and probably a cavernous angioma. We report an angiographically demonstrated and pathologically proved case of a venous angioma and also review the literature.

Adult↗
PubMed1978

Persistence of the dens as the body of C1. A case report of a rare anomaly.

A patient with persistence of the dens as the body of the first cervical vertebra is described. This is an extremely rare anomaly and in this patient was associated with instability of the first cervical vertebra. Embryologic considerations and the clinical implication- of this anomaly are discussed.

Adult↗
PubMed1978

Decrease in ventricular and sulcal size after death.

Fifty-one intact corpses were examined with the EMI head scanner from 1 1/2-52 hours after death; 15 of these had antemortem CT scans. Seven had sequential postmortem CT scans. CT scans and autopsy findings for lateral ventricular size and sulcal width were compared. The lateral ventricular size generally, and the sulcal width occasionally, became smaller after death, though the decrease was usually mild. This decrease was demonstrated not only on antemortem and postmortem sequential CT scans, but on postmortem sequential CT scans alone as well.

Autopsy↗
PubMed1977

The sella in childhood hypothyroidism.

Two sellar configurations have been noted in primary childhood hypothyroidism. In the older child the sella appears unusually round and slightly enlarged, and the term "cherry" sella has been used to describe its appearance. Enlargement is due to rebound hypertrophy of the pituitary gland and is reversible with adequate, early treatment. If reversal of these changes is not accomplished one should consider the possibility of an adenoma having developed. In the young child an infant the sella appears more immature and "bowl-like". Enlargement is not a prominent feature in this age group, and indeed was difficult to detect with certainty. Both configurations, but especially the "cherry" sella of the older child, are characteristic enough to enable one to suggest the diagnosis of primary hypothyroidism from lateral skull films.

Adolescent↗
PubMed1977

Anterior pontomesencephalic vein and basilar artery in exophytic brainstem gilioma.

The angiographic differentiation of an intrinsic exophytic brainstem glioma from an extra-axial posterior fossa tumor is not always easy. The location of the basilar artery alone may not be significant. Displacement of the anterior pontomesencephalic vein anterior to the basilar artery appears to be a reliable indicator of an intrinsic exophytic brainstem glioma.

Adolescent↗
PubMed1977

Deep venous occlusion in the Sturge-Weber syndrome.

Of the venous abnormalities in the Sturge-Weber syndrome, deep venous occlusion is an uncommon finding. As far as can be determined it has been described in only two previously recorded cases. Another such case is presented to illustrate the usefulness of this finding, in conjunction with other venous anomalies, in the diagnosis of the Sturge-Weber syndrome, especially before two years of age when calcifications in the brain may not have appeared.

Angiomatosis↗