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Biomedical subjects

M Valette

Publications and source records attributed to M Valette.

At least 37 records · Page 2Linked to original sources
PubMed1986

Aneurysmal dilatation of the portal vein: a case diagnosed by real-time ultrasonography.

A case of aneurysmal dilatation of the portal vein is reported. A real-time ultrasound study showed a cystic mass behind the pancreatic head, freely communicating with the lumen of the portal, superior mesenteric, and splenic veins, which was diagnostic of portal vein aneurysm. The diagnosis was confirmed by dynamic computed tomography and celiac and superior mesenteric angiograms.

Aneurysm↗
PubMed1983

[Cecal pseudotumor and appendicular mucocele in cystic fibrosis. Apropos of a case].

Fecal concretions adherent to the caecal mucosa and an appendicular mucocele may present as a palpable mass in the right iliac fossa. The authors report a case of a young man with mucoviscidosis who presented with these two signs and they propose a non-invasive diagnostic approach consisting of a plain X-ray of the abdomen, an ultrasound examination and a hypertonic, hydrosoluble contrast enema. Fecal concretions do not produce any specific features on the plain X-ray or on ultrasound but they are seen as a constant filling defect on the contrast enema and they may be evacuated with this technique, thus avoiding the need for surgery. The mucocele is rarely calcified on the plain abdominal film and ultrasound reveals a liquid contents. It should be treated by limited excision of the appendix. The discovery of an appendicular mucocele at any age should lead to the investigation for mucoviscidosis.

Appendix↗
PubMed1982

[Profile projection of the rectosigmoid in left lateral decubitus with vertical rays in the diagnosis of obstruction of the lower colon].

For differential diagnosis between obstruction of the lower organ and paralytic ileus, an additional projection to the customary A.S.P. plates is proposed: profile of the rectosigmoid in left lateral decubitus with vertical rays, designed to back up the differential reasoning behind the presence or absence of a rectosigmoid distended by gas.

Colon, Sigmoid↗
PubMed1982

[Primary sclerosing cholangitis. External biliary drainage by the transhepatic percutaneous approach. A case report].

A 25 year old man had a primary sclerosing cholangitis (PSC). The surgical management (cholecystostomy and external biliary drainage) failed with persistence of cholestasis and serious infection. Third surgical time impossibility induced the authors to suggest percutaneous transhepatic drainage. As well adapted and efficient with clinical and biological improvement, the drainage has been maintained. The patient was still doing well 6 months later. Therefore this radiological technique seems to be an useful palliative treatment of PSC in slowing down the evolution.

Cholangitis↗
PubMed1981

[Arteriography in liver hydatid cysts. Interest in the choice of surgical technique (author's transl)].

Three cases of liver hydatid cysts are reported. They showed the interest of arteriography in the treatment. Actually, resection of the adventice is the best surgical treatment not to miss a small cyst in the adventice of a large one and to let an hepatic cavity which quickly disappear. Nevertheless, in some cases arteriography contraindicates total resection of the adventice if it seem dangerous or if vessels ligation and large hepatic resection may occur.

Adult↗
PubMed1978

[Bone lesions in a case of heavy chain alpha disease (author's transl)].

Specific bone lesions are not usually found in heavy chain alpha disease we report a case in which images identical to those seen in Parker and Jackson's sarcoma (bone lymphoma) were found. The malignant lymphomatous nature of the lesion could not be confirmed as a bone biopsy was not made, but its regression under chemotherapy makes the diagnosis almost certain. Indirectly, arguments in favour of this hypothesis can be drawn from the common cellular origin of bone lymphomas and monoclonal gammopathies. Furthermore, it is logical to assume that heavy chain alpha disease, as with most other immuno-proliferative syndromes, can be associated with malignant lymphomatous changes in the skeleton.

Adult↗
PubMed1977

[Ureteral diverticulosis (author's transl)].

We report here two new cases of ureteral diverticulosis. This condition is found usually in the man of the fifties who has most frequently an urinary tract infection or a prostatic adenoma. The roentgen findings are multiple out-poutchings of the lumbar ureter. Several factors are combined (constitutionnal, urinary tract infection, disordered ureteral-motility) to explain the creation of diverticules in the areas of weakness of ureteral wall, where penetrate the vessels.

Aged↗