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Biomedical subjects

E Ponette

Publications and source records attributed to E Ponette.

At least 73 records · Page 4Linked to original sources
PubMed1984

Sonographic diagnosis of intraluminal bile duct neoplasm: a report of 3 cases.

Intraluminal growing tumors of the bile duct are uncommon causes of jaundice. The sonographic appearance of 2 hilar cholangiocarcinomas or Klatskin tumors and a benign extrahepatic biliary cystadenoma is described. Compared to contrast studies of the bile ducts, sonography better defined the intraductal character of the neoplasms. However, the ultrasound appearance did not allow differentiation between the adenocarcinomas and the benign cystadenoma.

Adenocarcinoma↗
PubMed1984

The value of ileoscopy with biopsy in the diagnosis of intestinal Crohn's disease.

Studies to determine the diagnostic value of ileoscopy and biopsy are not available. In an attempt to clarify the role of this technique in the diagnosis of intestinal Crohn's disease, 110 patients with a radiological diagnosis of inflammatory disease of the terminal ileum were examined in a prospective study. Suspicion of Crohn's disease was rejected in 28 patients. In 18 patients the terminal ileum was normal, while 10 patients had lymphoid nodular hyperplasia. Endoscopic lesions with a predictive value of 0.96 were found in 25 of 48 patients with the final diagnosis of Crohn's disease. Diagnostic granulomas were only found in 4 patients, but lesions consistent with Crohn's disease were present in the pathology sections of 17 patients. It was concluded that ileoscopy with biopsy is a valuable tool in the diagnosis of inflammatory ileal disease and can provide useful information about the nature and extent of the inflammation.

Adolescent↗
PubMed1984

Cystadenoma of the common bile duct demonstrated by endoscopic retrograde cholangiography: an uncommon cause of extrahepatic obstruction.

Obstructive jaundice may rarely be caused by a benign tumor of the biliary tract. We describe a patient in whom the diagnosis of cystadenoma of the common bile duct was established. Complete resection of the tumor could be carried out. The clinical, radiological, and histological features of this neoplasm are reviewed.

Cholangiopancreatography, Endoscopic Retrograde↗
PubMed1983

Early diagnosis of Budd-Chiari syndrome by computed tomography and ultrasonography: report of five cases.

In 5 patients with Budd-Chiari syndrome, computed tomography after intravenous bolus injection of iodinated contrast agents demonstrated images not previously seen in other diseases. The images are compatible with stagnation of contrast material at the periphery of the liver. In 3 of the 5 cases, grey-scale ultrasonography failed to document the normal hepatic veins draining into the inferior caval vein, but showed an intrahepatic network of comma-shaped venous structures. It is proposed that these two noninvasive approaches can help in establishing an early diagnosis.

Adult↗
PubMed1983

Case report: fourteen-year follow-up of an apudoma of the bile ducts at the hilum of the liver.

A patient presented with a sclerosing tumor at the bifurcation of the main hepatic ducts and was followed for 14 yr after the initial symptoms. Palliative surgery was performed in 1968, followed by a remission of 10 yr. A reintervention in 1979 showed an impressive fibrotic mass that could be extirpated. The patient is again in complete remission for almost 3 yr. A tumor biopsy specimen, obtained at the second intervention, showed an apudoma-type tumor. This was confirmed by a positive Grimelius stain and by immunohistochemical investigation.

Adult↗
PubMed1982

Yersinia enteritis.

Y. enterocolitica has been shown to be a fairly common human pathogen in many countries. The clinical picture produced by Y. enterocolitica infections is quite variable. An acute abdominal disease (acute gastroenteritis or colitis, or a pseudoappendicitis due to acute terminal ileitis) and, less commonly, erythema nodosum and arthritis are the most important manifestations of the disease. On radiologic examination mucosal lesions of the terminal ileum are found in most patients with gastrointestinal symptoms. The colon is less frequently involved. The most typical lesions consist of shallow, small, round ulcers characteristic of the disease. Microscopic examination may suggest yersiniosis but does not show pathogenic signs. Y. enterocolitica can be detected by stool cultures or by serologic examinations. The disease is usually mild. If specific therapy is indicated the disease usually responds well to antibiotic therapy.

Anti-Bacterial Agents↗
PubMed1982

Acute infective colitis caused by endemic pathogens in western Europe: endoscopic features.

In a 4-year period 45 patients were admitted to our gastroenterological u nit with acute infective colitis. The endemic pathogens responsible for the colitis were Yersinia enterocolitica (46%), Campylobacter fetus jejuni (20%), common Salmonellae (13%), less virulent strains of Shigella (9%), Entamoeba hystolytica (7%) and Cytomegalovirus (4%). These microorganisms caused very severe disease in 18% of the patients, who were mostly predisposed. While Salmonella- and amoebic colitis always mimicked ulcerative colitis by the presence of diffuse lesions, the other pathogens caused focal colitis, thus necessitating differential diagnosis vis a vis Crohn's colitis. Two patients (4%) died of complications, while 93% of the patients were cured by proper antimicrobial therapy. In the same period 12 patients were admitted with an acute attack of inflammatory bowel disease due to an intercurrent infection with the same pathogens. In most of these patients clinical remission of IBD was achieved by treating the intercurrent infection. These data indicate that in the presence of an acute attack of colitis an infective etiologic agent must always be sought, and that an attack of chronic idiopathic inflammatory bowel disease may be caused by an intercurrent infection.

Adolescent↗
PubMed1981

Intravenous digital subtraction angiography.

The authors report the preliminary results obtained with a prototype of a digital subtraction unit in intravenous aortography. This new method in its actual state of development is not able to replace conventional arteriography. The new technique can be applied in selected clinical conditions where conventional arteriography is contraindicated or impossible. Further improvement of the spatial resolution of the digital image and reduction of the amount of contrast medium may extend clinical applications of this method which may be able to reduce substantially the cost and morbidity of angiography.

Abdomen↗
PubMed1980

Ultrasonic appearance of the filled and contracted normal gallbladder.

The echographic appearance of the wall of normal well-filled and contracted gallbladders was studied prospectively in 25 persons. Using gray-scale equipment, the wall of the filled gallbladder appeared as a single reflecting structure, whereas during contraction, three different components could be distinguished. The exact recognition of this particular pattern is important in the differential diagnosis of real wall thickening and incomplete contraction.

Adult↗