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Biomedical subjects

A Bronner

Publications and source records attributed to A Bronner.

At least 73 records · Page 4Linked to original sources
PubMed1979

[The use of computerized axial x-ray-tomography (EMI-scan) in ophthalmology (author's transl)].

There now exist protocols for specific scanning which make it possible to obtain tranverse sections of a few millimetres in thickness of the orbits and their contents, with minimum sweep and with a very low dose of radiation for the lens. Normal scanner anatomical findings in the orbit may thus be defined for the eyeball (outer coats, vitreous, lens) as well as retrobulbar structures (optic nerve, oculomotor muscles in particular). Intraocular tumours (e.g. retinoblastoma) are visible on enlarged scan films. The value of scannings lies above all in the determination of the site, size and shape of orbital lesions and, where applicable, their relations with neighbouring extra- and intra-cerebral structures. In addition, certain conditions such as exophthalmos during hyperthyroidism have characteristic scan findings. It nevertheless remains difficult to attempt to predict a histological diagnosis on the basis of scan findings, the risk of a false positive being particularly significant. Particular emphasis must be placed upon the contribution of techniques of treatment of the films obtained (enlargement, contrast media, histograms, lateral views) as well as the complementary use of other methods of radiological investigation (in particular arteriography and phlebography) which scanning cannot replace but which it should usually precede since it is atraumatic and non-invase.

Eye↗
PubMed1979

[Painful ophthalmoplegia and cavernous sinus syndrome of inflammatory origin (discussion of 2 cases)].

Two patients with unilateral painful ophthalmoplegia are presented, a woman of 26 and a man of 28. In both cases the phlebography of the orbit shows an alteration of the orbital veinous blood flow, specially of the third segment of the superior orbital vein. Another characteristic feature of this syndrom is efficiency of corticotherapy and heparinotherapy, which may suggest an inflammatory and thrombophlebitic origin.

Adrenal Cortex Hormones↗
PubMed1977

[The technique of intracameral transplants applied to the study of experimental embryological problems concerning odontogenesis (author's transl)].

Two experimental embryological problems concerning odontogenesis are investigated using the technique of intracameral transplants in mice: --the presence of odontogenetic material in the mandibular arches of the 9 day mouse embryo, --the degree of specificity of the epitheliomesenchymatous interact-ons in the region of the tooth of the mouse and the rabbit. The tolerance of the recipient eye has been studied: --in the case of homografts, --in the case of heterografts. The indications and limiting factors of the method are specified within the framework of the chosen experimental conditions, taking into account the rejection phenomena manifested in the case of the heterografts.

Ameloblasts↗