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Biomedical subjects

J Pringot

Publications and source records attributed to J Pringot.

At least 73 records · Page 4Linked to original sources
PubMed1989

Pancreatic cystic neoplasms.

Cystic neoplasms are an uncommon group among pancreatic tumors. Because of advances in noninvasive diagnostic procedures, these lesions are more frequently detected and surgically treated. New pathological entities have been recently described with their own prognosis. 1. In a large number of cases, the imaging procedures can differentiate microcystic adenoma from mucinous cystadenoma, the more frequently encountered lesions. A well-defined mass with innumerable small cysts producing a honeycomb appearance with central stellate septae is suggestive of microcystic adenoma. A well-defined multilocular mass containing thin, straight or curvilinear septae with papillary projections and local thickening is suggestive of mucinous cystadenoma. 2. No sonographic or CT finding allows the differentiation between mucinous cystadenoma and cystadenocarcinoma, however; the imaging features depend on the grade of malignancy. 3. Thus, in the majority of cases of cystic lesions, fine needle aspiration with appropriate stains is recommended.

Biopsy, Needle↗
PubMed1989

[Computed tomography of the esophagus, the stomach and the duodenum. Review of methods and results].

Computed tomography (CT) of the esophagus, the stomach and the duodenum allows characterization of some lesions: lipomas, cysts and duplications, recent haematomas, vascular anomalies. CT is particularly used for the extramural staging of neoplasms: despite important limitations, CT may be useful as staging test to identify a subgroup of patients with definitive metastases or local invasion who therefore have unresectable tumors. CT is helpful for the staging of lymphomas. The importance of this staging classification is reflected in differences in treatment and prognosis. CT is also useful for the follow-up after treatment, the diagnosis of recurrence and postoperative complications.

Esophageal Neoplasms↗
PubMed1988

Duodenojejunal intussusception secondary to duodenal tumors.

Duodenojejunal intussusception secondary to duodenal tumors is an uncommon entity. The classic coiled-spring appearance, fairly visible in the jejunum, is not apparent in the duodenum due to its fixed position. This explains why the intussusception is located superiorly in the genu inferius and inferiorly in the duodenojejunal junction. This aspect should not be confused with two separated masses.

Aged↗
PubMed1988

Hepatic heterogeneity on CT in Budd-Chiari syndrome: correlation with regional disturbances in portal flow.

A comparative study of the imaging findings of computed tomography (CT), selective arteriography, CT arteriography, and/or CT portography is presented in 4 patients with Budd-Chiari syndrome. Hepatic differences in attenuation and morphologic changes were generally found to be closely related with regional disturbances in portal flow. Areas with complete hepatic vein obstruction were hypodense on pre- and postcontrast scans, probably due to portal flow inversion. In 2 of 4 cases, these were subsequently atrophied, while areas receiving the remaining venous outflow appeared hypertrophied. They were markedly enhanced on postcontrast scans. Enhancement may be patchy due to portal and sinusoidal stasis.

Adolescent↗
PubMed1987

Budd-Chiari syndrome: dynamic CT.

A retrospective multi-institutional study was carried out on a series of 38 patients with histologically proved Budd-Chiari syndrome: Five patients had acute disease, and 33 had subacute or chronic disease. All patients underwent dynamic CT scanning. Angiography was performed in 20 cases, inferior cavography in 22, and wedge-hepatic venography in 16. In all acute cases, CT showed global liver enlargement with diffuse hypodensity on plain scans and patchy enhancement after contrast material injection. Thrombosis of the three main hepatic veins was always demonstrated. In subacute or chronic disease, plain CT scans showed abnormalities of liver morphology and hypodensity either in atrophic areas (19 cases) or in the periphery of the liver (eight cases). With dynamic CT, patchy enhancement was present in 28 cases. Correlation with angiography in 15 cases revealed a normal portal blood flow in enhanced areas and an inversed portal blood flow in atrophic areas. Different morphologic and enhancement patterns on CT scans could be related to the direction of portal blood flow, which changes with different stages of Budd-Chiari syndrome.

Acute Disease↗
PubMed1985

[Diagnosis of internal jugular vein thrombosis by x-ray computed tomography].

We made the diagnosis of internal jugular vein thrombosis by computed tomography in 3 cases. The CT diagnostic signs are the following: widening of the vein caliber, absence of opacification or nonhomogeneous aspect of the opacification of the lumen, and parietal contrast fixation. Classical and more recent etiology refers to cervico-facial infections and injuries, central venous catheterizations and local surgery, compression by a cervical mass, and use of oral contraceptives. The advantage of CT consists in its noninvasive contribution to defining a diagnosis that pathology, which is nonspecific (painful cervical tumefaction), often cannot reach.

Adult↗