Biomedical subjects
Publications and source records attributed to J P Monnier.
Thirty-seven hyperechoic cavernous hemangiomas of the liver were investigated by sonography and angiography. Posterior enhancement of a hyperechoic mass on sonography was correlated with hypervascularity on angiography. Such enhancement was noted in 76.5% of cases and in all angiomas larger than 25 mm in diameter.
The authors present the results of the radiological explorations in 15 cases of benign liver tumors. Ultrasound and/or computed tomography can usually confirm the presence of a hepatic tumor. Arteriography combined with the clinical information suggested the diagnosis. The authors stress the role of the radiological investigations for the follow-up of these tumors.
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The superior mesenteric artery was found to be displaced posteriorly in 5 patients with intraperitoneal masses. In 3 cases, the mass was a mesenteric tumor, and in the 2 other cases a tumor arising from the retroperitoneal area which had grown into the mesentery. The authors emphasize, therefore, the value of defining the position of the superior mesenteric artery in the sagittal plane for the topographic diagnosis of intraperitoneal masses. This investigation does not, however, eliminate the possibility of a retroperitoneal origin of the tumoral mass.
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The authors report on a survey of perforation following fibroscopy in the Hôpital Saint-Antoine. A total of 10,600 diagnostic examinations were reviewed and 5 perforations were recorded, to which must be added 2 perforations following oesophageal dilatation. A chesy X-ray, taken within 24 hours of the incident, showed, in most cases, the presence of air in the mediastinum with early signs of subcutaneous emphysema in the cervical or cervicothoracic regions. A hydro-pneumothorax in the right side of the chest was also observed in the cases studied, without air in the mediastinum. Oesophageal transit was studied by means of a water-soluble compound, and showed oesophageal effraction in only 4 cases, and in 3 of these cases it was possible to see the location of the orifice with precision.
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Provided that a rigourous protocol is adopted, exploration of the hepatic veins by echotomography (grey scale) is practically always possible. It should be integrated into every echotomographic study of the liver (parenchyma, biliary tract, portal system and inferior vena cava). The findings cover a narrow range: hepatic veins free, compressed or not visible. This method is harmless, rapid, reproducible and inexpensive.
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Crohn's disease with a predominantly pseudopolypoid presentation is a rare form. The inflammatory polyps are of highly variable topography. They may be located in the colon and the ileum. There are diffuse and localised forms. This pseudopolypoid form of Crohn's disease poses, in addition to diagnostic problems, pathogenic questions, integrating these findings within the context of nonspecific reactions of the colon, secondary to an ulcerating process which may be specific.
Duplicating x-ray films is a matter of interest to all physicians, even if they are not radiologists. The impossibility of a direct reading is a major drawback of reproduction in the form of slides. By contrast, a transparency is an irreplaceable teaching tool. Contact printing of slides on counterpart film is a process within the reach of all departments of radiology. In one single step, this process gives a plate of 100 transparencies on counterpart film costing about 2.20 dollars.
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On the basis of 72 radio-surgical cases of abdominal aortic aneurism, the authors stress the value of atypical angiographic findings, which are ten in number. The presence of clot within the aneurism itself may explain a disparity between radiological and surgical findings. Failure to recognize these atypical signs is very serious, when the diagnosis of aneurism is not suspected clinically. Antero-posterior and, above all, lateral abdominal aortography is essential in the angiographic study of aneurisms of the abdominal aorta. Careful search for these 10 atypical signs should make it possible to avoid missing latent aneurisms. Lateral abdominal aortography is essential in order to determine the state of the abdominal collaterals of the aorta and, in particular, the superior mesenteric artery.
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Explore the source record for details and available documents.