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Biomedical subjects

J C Hoffman

Publications and source records attributed to J C Hoffman.

113 records · Page 7Linked to original sources
PubMedDate not supplied

Value of computed tomographic myelography in the recognition of cervical herniated disk.

Three patients with cervical radicular symptoms and normal metrizamide myelograms underwent thin-section high-resolution computed tomographic scanning because of a strong clinical suspicion of herniated disk. Herniated disk was demonstrated in all three cases. In two, the disk protrusions were recognized only by computed tomographic myelography, and in the third case, the diagnosis was made with plain computed tomography and confirmed by computed tomographic myelography.

Adult↗
PubMedDate not supplied

Large hypothalamic and optic chiasm gliomas in infants: difficulties in distinction.

Hypothalamic and optic chiasm gliomas may be indistinguishable clinically, radiographically, and pathologically. Ten children with giant gliomas of the hypothalamus and optic pathway, all under age 2 years, had masses greater than 3 cm in diameter. Pathologically all proven cases (seven) were cytologically benign fibrillary astrocytomas. Previous authors have recognized the difficulty in distinguishing these lesions; in this series, using previously suggested criteria, masses of optic chiasm could not be differentiated from hypothalamic origins. Likewise, at surgery and autopsy, the origin of these large masses was indeterminate. These tumors were more aggressive, invasive, and less responsive to therapy than the relatively benign orbital and optic nerve gliomas of older children and adults.

Astrocytoma↗
PubMedDate not supplied

Computed tomography of the buccomasseteric region: 1. Anatomy.

The differential diagnosis to consider in a patient presenting with a buccomasseteric region mass is rather lengthy. Precise preoperative localization of the mass and a determination of its extent and, it is hoped, histology will provide a most useful guide to the head and neck surgeon operating in this anatomically complex region. Part 1 of this article describes the computed tomographic anatomy of this region, while part 2 discusses pathologic changes. The clinical value of computed tomography as an imaging method for this region is emphasized.

Cheek↗
PubMedDate not supplied

Computed tomography of the buccomasseteric region: 2. Pathology.

Part 2 of this article concerns itself with alterations in the normal anatomy (described in part 1) by various disease processes. Ten patients are described with various facial masses. The role of computed tomography in the clinical workup of these patients is stressed.

Abscess↗