Biomedical subjects
Publications and source records attributed to P Adam.
Three cases of mandibular metastasis of hepatocellular cancer are reported. The specific characteristics are described: rarity, discovery, localization, haemorrhagic biopsies and histological criteria. Prognosis is poor.
Drooling is not induced by an excess of salivary but by incontinence, in case of patients with cerebral palsy and neurologically damaged. Than radical techniques of excision, duct ligations of salivary glands, the authors propose an original association of deviation of submandibular and parotid ducts behind the anterior pillar of soft palate. They discuss it with other therapeutics already proposed in the literature.
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The authors propose their experience about 6 cases of chronic dislocation of the temporo-mandibular joint. They underline the part of edentulous status as a predisposing factor also that of the anatomopathological injuries of the dislocated joint. According to the literature, they insist about the importance of surgery to set the dislocation, that in association with a temporal aponevrosis flap and occlusal adjustment, accompanied by immediate postoperative rehabilitation.
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A new method of taking a sublingual gland sample is suggested by the authors in the fore pole. They emphasize on this straightforward operating act and on the amount of tissue removed. The aim of the removal could be etiologic within the framework of the Gougerot-Sjögren's syndrome, diagnostic in the sarcoidosis and rheumatoid arthritis, prognostic in the graft versus host disease.
Pigmented villonodular synovitis is a benign monoarticular synovial proliferative disorder. Three cases involving the knee are reported. MR signs are highly suggestive: --joint effusion (blood); --hypointense synovial proliferation (irregular infrapatellar fat pad sign; hemosiderin deposits); --no loss of joint space. Diagnosis by MR Imaging is early, accurate and atraumatic.
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The authors describe a technique for digital subtraction angiography of vessels of the legs, performed in 56 patients for suspicion or control of peripheral vascular disease. Owing to an unilateral femoral arterial puncture and a programmed moving of the table top, a subtraction arterial mapping of the two legs is obtained with only two injections of contrast medium. On the side of the puncture the arterial opacification is always very satisfactory. On the other side opacified by reflux the popliteotibial region is visualized in 95% of cases. We had no complication with iodine or arterial puncture. Our technique is then characterized by its simplicity and a small trauma owing to the unilateral puncture and the reduction of contrast medium injections.
We studied the ability of digital radiographs generated on a computed tomography scanner to replace conventional pelvimetry. Two digital radiograph's and one CT section permit us to measure the maternal pelvis. The anteroposterior digital radiograph allows measurement of the maximum transverse and median transverse diameters of the pelvic inlet. These two distances are corrected for magnification after reference to the lateral digital radiograph and to a graph determined owing to a phantom. The anteroposterior digital radiograph also permits to perform a CT section passing through the ischial spines with direct measurement of the inter spinous diameter. The lateral digital radiograph gives us the true values for the anteroposterior diameter of the pelvic inlet, the low sagittal diameter, the cord and the rise of the sacrum. The dosimetry studies demonstrated that maternal skin doses and fetal gonad doses were very low. Pelvimetry using digital radiography is a simple and rapid to perform procedure which offers the advantage of low radiation exposure to both fetus and mother and a high accuracy of measurement.
Benign primitive melanomas are rare tumours usually involving the leptomeninges. Four cranial localizations are reported: 2 tumours of the foramen magnum, 1 of the cerebellopontine angle and 1 supratentorial. The clinical symptomatology is variable according to the level. Slow medullary compression is frequent. One can emphasize the special and difficult problem of foramen magnum tumours that present with a very variable clinical status frequently simulating a non surgical disease of the central nervous system. The benign and primitive appearance of these tumours is evocated by the slow and favourable evolution and by the absence of extraneurologic melanotic tumour. Our purpose is essentially to emphasize the radiological and particularly the computed tomographic (CT) findings poorly described in the literature. Benign melanomas have resemblance with meningiomas: osseous or meningeal relationship, homogeneity and high density. On the other hand the angiography shows poor vascularization. One can think that a tumor simulating a meningioma by CT but not by angiography is perhaps a benign melanoma. The special problem of the radiological diagnosis of foramen magnum tumours is evocated: Computed myelography, tridimensional imaging by NMR.
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The assessment of acetabular fractures by conventional radiology is difficult whilst essential to the planning of orthopaedic treatment. This report details the results of computed tomography (CT) in a study of acetabular fractures in 30 patients. Computed tomography was always superior to conventional radiology, particularly in the evaluation of lesions of the posterior acetabular margin. The standard classification of the fractures did not require modification but was reinforced by the three-dimensional visualisation of the lesions. The particular contribution of CT was in the assessment of associated lesions often not apparent on conventional views of the pelvis: these comprised sacroiliac lesions in 60% of cases, intra-articular loose bodies in 33% of cases and pelvic haematomas in 17% of cases. As a result of CT, treatment was changed in one third of cases. In addition to its role in indicating the need for surgical or orthopaedic treatment, CT sometimes permitted a better choice of surgical technique, especially in respect of sacroiliac lesions causing as yet unexplained sciatica.
We studied the ability of digital radiographs generated on a computed tomography scanner to replace conventional pelvimetry. Two digital radiographs were usually sufficient to measure the maternal pelvis. The antero-posterior (AP) digital radiograph allowed measurement of the transverse diameter of the pelvic inlet, the interspinous distance and the intertuberous diameter. These three distances were corrected for magnification after reference to the lateral digital radiograph. The lateral radiograph gives the AP diameter of the pelvic inlet and the low sagittal diameter. Dosimetry studies demonstrated that maternal skin doses and fetal gonad doses were very low. Pelvimetry using digital radiography is a simple procedure which offers the advantage of low radiation exposure to both fetus and mother and a high accuracy of measurement.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.