Biomedical subjects

T F Berns

Publications and source records attributed to T F Berns.

4 recordsLinked to original sources

PubMed1980

Computed tomography of the optic chiasm.

Using a CT/T 8800 scanner, axial and coronal images of the optic chiasm were obtained in a cadaver, 41 normal individuals, and six patients with symptoms of chiasmal glioma. The size and shape of each chiasm were determined. The normal chiasm appeared to be U- or boomerang-shaped in axial sections, and U- or dumbell-shaped in coronal sections. The average normal chiasm diameters were 1.8 cm (transverse) by 0.8 cm (anteroposterior) by 0.4 cm (vertical). The chiasm was globular and larger than 0.6 cm (vertical dimension) in all cases of chiasmal glioma. The abnormal chiasm can be distinguished accurately from the normal chiasm by computed tomography.

Cranial Nerve Neoplasms↗

PubMedDate not supplied

Spinal epidural lymphomas: CT features in seven patients.

The computed tomographic (CT) images and records of seven patients with epidural lymphomas were reviewed to analyze their CT characteristics. Although no single specific pattern was identified, several signs were seen: (1) an intraspinal epidural irregular mass extending over several vertebral levels; (2) a mass with osteolysis or sclerosis; and (3) a combined intra- and extraspinal mass. Lymphoma must be considered in epidural masses when there are associated bone changes.

Adult↗

PubMedDate not supplied

Mesencephalic anatomy: demonstration by computed tomography.

Although gray and white matter are distinguished by computed tomography (CT) in the cerebrum and cerebellum, their resolution in the mesencephalon has not been reported. CT and anatomic sections of the mesencephalon were compared to determine the relative densities of the superior cerebellar peduncles (white matter) and red nuclei and central gray matter. The normal low attenuation of the superior cerebellar peduncle should not be misinterpreted as infarction or demyelination.

Cerebellar Nuclei↗

PubMedDate not supplied

The flocculus in computed tomography.

The flocculus may simulate a cerebellopontine angle mass in computed tomography (CT). The CT appearance of the flocculus was compared with acoustic neuroma. Normal internal auditory canals, symmetric cerebellopontine angle cisterns, modest contrast enhancement, and a location posterior to the porus acousticus distinguish the flocculus from an acoustic neuroma.

Cerebellopontine Angle↗