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Biomedical subjects

M Bellet

Publications and source records attributed to M Bellet.

120 records · Page 7Linked to original sources
PubMedDate not supplied

[Cholangio-carcinoma arising in Caroli's disease (author's transl)].

Report of one case of Caroli's disease (congenital ectasy of segmental intra-hepatic bile ducts) associated with congenital hepatic fibrosis, in which arised clear cell biliary carcinoma. This event seems to be very rare. In our case, the bile duct dilatation was associated with renal polycystic diseases.

Adenocarcinoma↗
PubMedDate not supplied

[Angiographic signs of extra-dural hematomas of the posterior fossa (author's transl)].

Traumatic subacute and acute extra-dural hematomas of the posterior fossa are infrequent lesions which can be considered as exceptional From 1973 to 1977, we have collected 12 such cases. We performed 11 carotid angiographies and 7 vertebral angiographies in the series. Only in one case among 5 did clinical signs suggested a lesion of the posterior fossa. One of the best clinical elements to suggest such a lesion is the presence of a fracture line that crosses the lateral sinus, which necessitated a complete angiographic study. Arteriographic signs are function of the topography of the hematoma. The carotid angiography reveals only the supratentorial extension of the extra-dural collection of the blood clot. The most frequent sign is a filling defect of the affected sinus. The classic sign of detachment of the torcular is seen only in about 25% of cases. Vertebral angiography shows the existence of an expanding posteroinferior mass of the posterior fossa. Axial views always permits to find the avascular zone which corresponds to the extra-dural collection of the blood clot. In addition, vertebral angiography permits a good study of the sinusal drainage of the posterior fossa. In the purpose to find a supra-tentorial extension the prognosis of the extra-dural hematoma depends on its early discovery. The procedure of choice to make and to confirm such a diagnosis is vertebral angiography and it is not necessary to perform a carotid angiography in the cases where a supra-tentorial lesion does not seen associated.

Acute Disease↗
PubMedDate not supplied

[A familial case of thoracic outlet syndrome. Clinical, radiological study with treatment (author's transl)].

The authors report the clinical and radiological study and the treatment of a fifteen members family (the two parents and their thirteen children) affected with a thoracic outlet syndrome secondary to a cervical rib and or an apophysomegaly of the seventh cervical vertebra. On the fifteen people considered, the father being deceased has not been examined but has an evocative clinical history. The mother has a clinical impairment with a late beginning and no radiological sign. Twelve children have clinical and radiological signs, one has radiological without clinical signs. Three children underwent a surgical treatment, the others only medical treatment. There is no satisfactory correlation between the clinical features and electrical investigations (electromyography, nerve conduction studies) and radiological examinations. The semiology is vascular, neurologic or mixt. Roos test seems more reliable than that of Adson, Calb and Roth, and Saunders. Eight grand-children out of fourty have been examined. Five have clinical and radiological signs, three have casual radiological signs. The radiological impairment of this family contrasts with the normal frequency of cervical anomalies in the population which is 0,12 to 1%. The family impairment of the thoracic outlet syndrome is rarely reported.

Adult↗
PubMedDate not supplied

[Radiology in France in 1983. Quantitative data].

Data obtained from a survey involving 6 organizations enabled determination of the number of french radiologists in practice at the present time, and the establishment of regional lists of their office premises. The latter varied according to availability of personnel, the climate, the population density and the available radiology schools. Pyramid graphs provided data on age and sex of radiologists and were used to determine the incidence of turn-over for the specialty. National and departmental density of radiologists was also calculated. Total quantitative data obtained will be used as a base for all future projections able to define a true radiologic policy in France.

France↗
PubMedDate not supplied

[Double contrast radiological exploration of the major duodenal papilla (author's transl)].

The major duodenal papilla can be outlined in 75% of cases by double contrast examination. It is composed of an oval-shaped nodule covered by a mucous cap which is prolonged into a frenum in its lower part. Its mean dimensions are 11 X 7 X 6 mm. Many variations are observed, and these are analyzed as well as the features suggesting pathological modifications. These may arise from inflammation: during the course of primary or secondary (ulcer, pancreatitis) duodenitis, or be related to a stone blocked in the region of the ampulla. Tumors in this region are rare, and are usually malignant tumors, the characteristics and extension of which can be determined from radiological images. Use of this radiological technique as a preliminary step enables a complete study of the upper digestive tract to be conducted at the same time.

Ampulla of Vater↗