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Biomedical subjects

F Geisler

Publications and source records attributed to F Geisler.

29 records · Page 2Linked to original sources

[A case of pheochromocytoma with cardiac localization. Review of the literature].

In a 26-year old man who died post-operatively, post-mortem examination revealed the presence of a phaeochromocytoma located in the atrio-ventricular sulcus and involving the trunk and bifurcation branches of the left coronary artery. Pre-operative investigations, including whole-body computerized tomography, and exploratory laparotomy had failed to detect the tumour. In contrast with the case reported here, the 4 other cases previously published concerned intrapericardial phaeochromocytomas in contact with the posterior wall of the left atrium.

Adult↗

Agenesis of the right diaphragm: repaired with marlex.

A case of a female newborn with agenesis of the right hemidiaphragm is presented. The defect was corrected with a double sheet of Marlex, attached to a rim of endothoracic fascia and muscle. At the age of 5 yr, the child is in perfect health.

Diaphragm↗

[Hereditary coproporphyria. 7 cases].

Hereditary coprophyria, known since 1955, is a rare variety of hepatic porphyria. The clinical picture is similar to that of acute intermittent porphyria with certain minor differences; neurological manifestations being rarer in particular. The essential biological characteristic is the massive excretion, in the urine and faeces, of coproporphyrins whilst the excretion of porphobilinogen and delta-amino-laevulinic acid is only slightly increased. As in acute intermittent porphyria, certain medications have an adverse effect, especially the barbiturates. The exact nature of the biochemical lesion is not understood but its hereditary nature has been demonstrated. 25 families have been reported in the literature up to the present time. The authors report two cases of hereditary coproporphyria with peripheral paralysis and respiratory failure, the outcome being fatal in one case. Study of the families led to the discovery of 3 other cases in the second family and 2 latent forms in the first.

Adolescent↗

[Primary hyperparathyroidism. Round calcification as a sign of cervico-mediastinal localization of a parathyroid adenoma].

The authors report the case of a man aged 59 years, with primary hyperparathyroidism; removal of a first adenoma, did not lead to recovery. Later, an egg-shell calcification was found together with a second large cervico-mediastinal parathyroid adenoma, the removal of which caused all the symptoms to disappear. After a review of other cases in the world literature with calcification of the parathyroid glands, the authors consider, before using more complicated techniques for preoperative localisation of parathyroid adenomas, one should carry out careful radiological examination of the cervical and mediastinal region. Under these conditions, one may detect significant calcifications which have escaped routine examination and may contribute to the topographic diagnosis of the parathyroid lesion sought.

Adenoma↗

Use of titanium wire in cervical spine fixation as a means to reduce MR artifacts.

MR imaging of the cervical spine is valuable for assessing traumatic injuries to the spinal cord and bony ligamentous structures. MR is also useful for detecting such long-term complications of spinal cord injury as syrinx, arachnoid cyst, cord adhesion, and persistent mechanical impingement on the spinal cord or spinal nerve roots. Treatment of cervical spine injuries that are mechanically unstable entails fixation and fusion. However, previous attempts at our institution to obtain clinically useful MR images of the cervical region after posterior wire fixation have failed because of image artifacts arising from ferromagnetic stainless steel wires. Use of biocompatible titanium wire for fixation allowed undistorted imaging of the spinal cord and spinal canal adjacent to the surgical fixation in a cadaver and in eight patients.

Bone Wires↗