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Biomedical subjects

A L Liebeskind

Publications and source records attributed to A L Liebeskind.

14 recordsLinked to original sources
PubMed1978

Computed tomographic evaluation of therapeutically induced changes in primary and secondary brain tumors.

A prospective study was initiated to evaluate computed tomography as a method for monitoring therapeutically induced changes in brain tumors. Early postoperative scans may be misleading in the evaluation of residual tumor because of trauma to the blood-brain barrier during operation. The size of the dominant mass (17/25), enhancement (11/25), edema (11/25), and ventricular distortion (14/25) were decreased in many patients after radiation therapy. Occasional tumors increased in size during radiation therapy (3/25). Enlargement of the lateral ventricles developed in 9 of 25 patients. Computed tomography offers definite advantages over nuclide brain scans, angiography and other diagnostic studies for evaluating therapeutically induced changes in brain tumors.

Brain Neoplasms↗
PubMed1977

Endocystography in cystic neurilemmoma.

During myelographic evaluation for a suspected herniated disc, a cystic neurilemmoma in the lower lumbar region was inadvertently punctured and a contrast study of the interior of the lesion resulted. The possibility of puncture of a cystic mass should be considered in the differential diagnosis when a complete block is encountered above and below the site of needle puncutre, and particularly when the contrast column demonstrates a relatively smooth biconcave appearance.

Cysts↗
PubMed1977

The widened interspinous distance: a useful sign of anterior cervical dislocation in the supine frontal projection.

Anterior dislocation of the cervical spine may be detected reliably in the supine frontal projection by evaluating the cervical spinous processes. A widened interspinous distance (ISD) which measures more than one and one-half times the ISD above and more than one and one-half times the ISD below indicates the presence of an anterior cervical dislocation at the level of abnormal widening. Measurements of the interspinous distances from the C3-C4 interval through the C7-T1 interval in 500 patients with normal cervical spines and in 14 patients with documented anterior cervical dislocations revealed neither false positive nor false negative diagnoses by these criteria.

Adolescent↗
PubMed1976

Computed tomography: evaluation of the posterior third ventricle.

The normal computed tomography (CT) appearances of the posterior third ventricle and related structures are presented. Seventy-six patients with lesions directly involving this ventricle were studied by CT, and results of other neuroradiological procedures evaluated. Primary tumors, metastases, hematomas, infarcts, and cysts may be reliably distinguished by CT, particularly if contrast enhancement is utilized. Size and density resolution limit the direct visualization of the aqueduct of Sylvius; stenosis however may be inferred. Small infarcts may be difficult to demonstrate by the use of CT scans without contrast enhancement, yet be shown by isotope scans.

Arachnoid↗