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Biomedical subjects

O Berges

Publications and source records attributed to O Berges.

36 records · Page 2Linked to original sources
PubMed1989

[Diffuse retinoblastoma--apropos of a case].

We report a case of diffuse retinoblastoma in a 6 years old boy. The diagnosis should be suspected in front of the very evocative clinical picture itself. The aspect of the tyndall phenomenon, and of the convex pseudo-hypopyon, with iris pearls and nodules, together with a peripheral, imprecisely limited, retinal mass, non calcified on ultrasonographic examination, are typical. Aqueous paracentesis shows increased levels of Lactic Dehydrogenase (LDH), but most of all the cytologic examination confirms the diagnosis. The only treatment is enucleation. The clinical picture which may simulate uveitis, especially as this particular type of retinoblastoma has a late onset.

Child↗
PubMed1982

[A giant-cell tumor of the mandibular condyle].

The authors present a case of a giant cell tumor of the mandibular condyle, which is a very rare condition. Clinical history and symptoms suggested a disease of the ear. There was a destruction of the cortex of the condyle an invasion of the joint cavity, and an erosion of the adjacent temporal bone.

Adult↗
PubMed1982

[Post-traumatic instability between the atlas and the axis in children. Apropos of 5 cases].

The authors have observed 5 cases of atlanto-axial instability in children aged from 18 months to 8 years. All the cases were seen after severe trauma and presented with abnormal neurological signs. All patients were first treated conservatively and were operated on secondarily by atlanto-axial fusion using graft and wiring for persistent radiological instability between the atlas and axis. In two cases instability was due to an atlanto-axial subluxation with rupture of the transverse ligament; one of these was reduced by traction. In one case there was an anterior subluxation without fracture. In one case there was a fracture of the odontoid process in which instability persisted in spite of bony union of the fracture. In the last case, the odontoid process was intact shortly after the trauma but its central portion disappeared secondarily. The cause of this disappearance is discussed.

Atlanto-Axial Joint↗
PubMed1981

[Echotomography of the carotid bifurcation (author's transl)].

Echotomography examinations of carotid bifurcation were conducted in 19 patients, with a real-time apparatus (71 crystals, 7 MHz). Serial transversal sections plus two or more longitudinal sections enabled identification by Echo-B of the three carotid arteries, and thus the bifurcation, in 37 instances. Arteriography was performed in 11 patients (21 carotid arteries). Correlation between Echo-B and arteriographic findings was good in 10 cases (including 1 case of occlusion and 2 of stenosis). There were 3 false negatives but no false positives. Echo-B did not detect the bifurcation on either side in one patient. The method is non-invasive, painless, and can be repeated without risk. It enables the detection of stenotic and occlusive lesions with a certain degree of reliability. It is also of value for demonstrating the presence of atheromatous plaques, and to some extent, irregularities in the arterial wall or variations of its diameter. It allows new perspectives for long-term following of patients after medical or surgical treatment.

Aged↗
PubMedDate not supplied

Ultrasound biomicroscopy of Baikoff anterior chamber phakic intraocular lenses.

BACKGROUND: The purpose of the study was to analyze qualitatively and quantitatively anatomic relationships of anterior chamber Baikoff phakic intraocular lenses (IOL) to the cornea, angle, iris, and lens in myopic eyes. METHODS: Thirteen phakic myopic eyes (-9.00 to -15.00 diopters) corrected by minus power, angle-supported, anterior chamber intraocular lenses of the ZB5M style (Chiron-Domilens), with a mean follow-up of 25 months (range 18 to 36 months), were examined clinically and by ultrasound biomicroscopy. RESULTS: The mean distance (+/- SD) between the central cornea and the IOL was 2.05 +/- 0.18 mm (range 1.8 to 2.47 mm); mean distance between the corneal periphery and the IOL was 1.56 +/- 0.17 mm (range 1.33 to 1.95 mm); and the mean distance between the IOL and the lens was 0.58 +/- 0.12 mm (range 0.48 to 0.81 mm). IOL footplates seemed to be correctly positioned in the angle in all eyes. We observed no goniosynechiae. In six eyes, we found localized posterior indentation of the iris caused by the haptics. Four of these six eyes exhibited oval pupils associated with an oversized IOL. CONCLUSIONS: High frequency ultrasound biomicroscopy can define anatomic relationships of anterior chamber phakic IOLs, and help analyze the mechanisms of corneal and iris complications.

Adult↗
PubMedDate not supplied

Comparison of sonography and computed tomography in the study of orbital space-occupying lesions.

Seventy cases of space-occupying lesions in the eyeball and 140 extraocular masses in the orbit were explored by both sonography and compute tomography (CT). The merits of each method were demonstrated relative to defining the location, extension, and nature of the lesion. In adults with ocular masses, sonography is usually sufficient. For retinoblastoma, CT is usually necessary to rule out an extraocular extension. When an orbital process is involved, greater diagnostic accuracy can be achieved if the two methods are combined.

Adult↗
PubMedDate not supplied

[Psoas abscess of tuberculous origin without visible vertebral lesions. A case report (author's transl)].

Though seen with diminishing frequency, psoas abscesses of tuberculous origin are usually secondary to vertebral lesions. The absence of radiologically detectable bone lesions should not exclude the diagnosis, however, as these abscesses can be associated with sub-ligamentary spinal lesions. A case is reported of a psoas abscess of tuberculous origin revealed by a voluminous retroperitoneal mass, without visible signs of any bone lesion. The results of the different examinations conducted are presented.

Abscess↗