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Biomedical subjects

P Vandermarcq

Publications and source records attributed to P Vandermarcq.

51 records · Page 3Linked to original sources
PubMed1984

[The value of tomodensitometric studies in the diagnosis of the herniated lumbar disk. Apropos of 155 operated disks].

Correlation of radiological and pathological findings in 155 cases of operated herniated discs emphasizes the value of a CT scan in the diagnosis of these lesions. Imaging by the scanner is a safe and relatively low-cost procedure and its reliability is identical to that of other conventional exploratory methods. It should, therefore, become the initial examination conducted during investigation of sciatica thought to be of discal origin. Reliability of results has varied between 85 and 90 p. 100, according to the author, for this essentially simple and atraumatic method. Confirmation of the presence of a hernia requires the observance of clear signs: material of discal density amputating the spinal canal and spreading over the dural sheath. False negatives or positives usually occur in borderline cases or in previously operated patients. Differences in clinical and computed tomography findings, with undoubted absence of signs on the scan image, require further investigation by radiculography.

Adult↗
PubMed1983

[Castleman's pseudotumor. Apropos of a case with pelvic localization].

The authors report a case of a pelvic site of a Castleman pseudo-tumour, still called angio-follicular hyperplasia or lympho-vascular hamartoma. This disorder of unknown aetiology may be situated anywhere along the lymphatic chains (70% of cases in the mediastinum). It is often associated with immuno-haematological disorders. Suitable for surgical treatment, the course is always favourable.

Adult↗
PubMed1983

[Tomodensitometry and pancreatic pathology].

Computed tomography is currently the most effective method for investigating the pancreas. Though far from superseding ultrasonography, which should always precede it, possible insufficiences of this examination can be corrected and doubtful images clarified. Its greatest usefulness is in acute pancreatitis, as the size of the lesion can be defined as well as subsequent therapeutic measures. It also appears to be the most reliable examination for chronic pancreatitis or cancer of the pancreas at the present time, but their differential diagnosis can raise problems when certain localized hypertrophic lesions exist. However, diagnosis of a pancreatic lesion is only possible when it deforms the gland or modifies its density, and it is illusory to expect early detection of lesions less than 2 or 3 cm in diameter, particularly in cancer cases.

Adenocarcinoma↗
PubMed1980

[Aneurysms of the azygos vein].

A case of aneurysm of the arch of the greater azygos vein is reported. This extremely rare congenital anomaly appears as a large rounded opacity in the anterosuperior mediastinum. Though diagnosis may be suspected by the variations in size according to the period of observation and the position of the patient, if can only be confirmed by angiography, to eliminate an aneurysm of the superior vena cava or one of azygos vein from obstruction of the inferior vena cava.

Aneurysm↗
PubMedDate not supplied

[Homonymous lateral hemianopsia revealing cerebral thrombophlebitis. Role of a deficiency of protein S induced by l-asparaginase].

BACKGROUND: Cerebral thrombosis associated with protein S deficiency is very rare and is mainly related to hereditary form of protein S deficiency. CASE REPORT: A 19-year-old girl with acute lymphoblastic leukemia presented hemianopsy within a few days after the first administration of L-asparaginase. Magnetic resonance of the brain showed a cortical infarct. A marked decrease of the level of protein S was documented. Few days later, the patient was free of symptoms and protein S level was restored to the normal suggesting that the cerebral thrombosis was caused by transient protein S deficiency induced by L-asparaginase administration. DISCUSSION: Patients with neurological complication caused by L-asparaginase should be tested for protein S and other anticoagulant deficiencies.

Adult↗
PubMedDate not supplied

[X-ray computed tomographic study of the ethmoid and middle meatus. I. radioanatomy (coronal plane)].

The advance of endoscopic endonasal surgery allows limited surgical resection in chronic rhinosinusitis. An accurate topographic evaluation of diseases and individual morphologic variation are necessary for this functional surgery. The preoperative radiological investigations require a precise knowledge of ethmoid and osteo-meatal unit anatomy. Thin sections by high resolution CT were performed in coronal plane. The anatomical land marks and the ethmoidal bony roots, which allow a study of the osteo-meatal unit and ethmoid air cells system, are showed. Like endoscopic view, coronal slices better display the different grooves for paranasal sinus draining and their relations with the ethmoid.

Ethmoid Bone↗
PubMedDate not supplied

[Is rheumatoid arthritis connected with a digestive tract parasitosis? (author's transl)].

The comparison of blood eosinophil counts and stool parasites in two groups of patients--twenty one suffering from rheumatoid arthritis and twenty one from other various diseases--did not show any significant difference in favour of a parasitological etiology in rheumatoid arthritis, an hypothesis which had to be considered because of the efficacy of levamisole in the treatment of this disease.

Arthritis, Rheumatoid↗
PubMedDate not supplied

[Irradiation of the patient and its costs in the usual diagnostic procedures for disk hernia. Radiculography, spinal phlebography and tomodensitometry].

Three methods are currently employed for the diagnosis of sciatica due to disc lesions: radiculography, spinal phlebography, and computed tomography. Though their indications vary according to the author, it seemed worthwhile to compare radiation delivered by each of them, because of the often young age of the patients. Dosimetric studies using a Rando Phantom enabled calculation of doses to the skin, spinal cord, and gonads. Results indicated that low doses were delivered by the scanner, relatively high doses by spinal phlebography, and intermediate doses by radiculography. These findings suggest that the initial examination preoperatively in cases of simple sciatica due to herniated disc should be a CT scan whenever possible. Phlebography, on the contrary, and particularly in young women, should be used only exceptionally, as a result of the high doses delivered to the ovaries even during technically simple explorations.

Adult↗
PubMedDate not supplied

[Radiological consequences of lumbar disk surgery. Evaluation by MRI after 3 months].

Radiologic effects of the surgery for lumbar disc herniation: a study with MRI at the end of the third post-operative month. The results of patients operated for lumbar disc herniation are good in 83%, fair in 10% and poor in 7. The poor results are considered to be the consequence of post operative fibrosis. A prospective study in 67 patients has been performed to study the post operative appearance of the operated lumbar spine, three months after surgery. 45 days after surgery the recovery of patients was assessed by the score of Staufer and Coventry and patients were entered in the study independently of their clinical state. The MRI was performed at the end of the third month postoperatively and patient recovery assessed according to the score of Senegas and Lavignolle. All the clinical and radiologic data were statistically analysed... the chi-square test, a p. value less than 0.05 was considered statistically non significant. The correlation between the clinical recovery and the MRI was realized.

Adult↗
PubMedDate not supplied

[MRI in infectious and spontaneous tumoral epidural hemorrhagic pathology].

Several studies have served to underline the interest of MRI in the diagnosis and assessment of epidural abscess and malignant extradural spinal tumors. In our work, one of the quantitatively greatest published to this day, 64 patients presenting epidural pathology were evaluated by means of MRI. All the explorations were brought about through weighted multiplaned sequences T1, T2 and gadolinium injection. The pathological spectrum encountered is comprised of: metastatic extradural spinal tumors (58%), primary extradural spinal tumors (7%), epidural localizations of hematological diseases (9%), epidural abscess (25%), and one case of epidural hematoma. Assessment was brought to bear upon behavior in relation to type of sequence, spread of disease, medullary effects, type of enhancement following gadolinium injection. Degree of correlation with clinical data and surgical findings was also appraised. As concerns tumourous epidural pathology, positive diagnosis due to a lesion hinges upon the T1 and T2 sequences. Gadolinium's contribution is restricted to analysis of perivertebral and vertebral spreading; it also facilitates recognition of the spinal cord in circumferential epiduritis. So much said, gadolinium appears to be essential in frequently less compressive forms of infectious epiduritis; it plays a pronounced role in both follow-up of their evolution and recognition of acute epidural hematoma.

Bacterial Infections↗
PubMedDate not supplied

[Luxation of a hypoplastic posterior arch of the atlas. Report of a case].

A rare case of sagittal dislocation of the hypoplastic right semi-posterior arch of the atlas, complicating a cervical trauma, is described. The authors specify its radiographic and CT appearance. This is a congenital abnormality discovered accidentally, for which no specific surgical treatment was implemented.

Adult↗