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M Chousterman

Publications and source records attributed to M Chousterman.

51 records · Page 3Linked to original sources
PubMed1978

[Giant cell arteritis and takayasu's disease: histopathological criteria (author's transl)].

Both of these arterial diseases may involve the aorta and the major arterial trunks. Two cases of subclavian involvement are used to contrast them from a histopathological standpoint. In giant cell arteritis, the lesions affect above all the internal elastic layer and the inner part of the media, destroyed by an inflammatory infiltrate with giant cells. In Takayasu's disease, the lesions involve the adventitia, the site of fibrosis and of inflammatory islets with the vasa vasorum at the centres. Involvement of the media is predominantly in its outer part, the internal elastic layer being intact. A histopathological definition of these arterial diseases may be envisaged on the basis of these facts.

Adult↗
PubMed1978

[Lesions of the myenterix plexuses in idiopathic chronic intestinal pseudo-obstruction and in certain general diseases].

Recent observation of a case of idiopathic chronic intestinal pseudo-obstruction and the relationship sometimes suggested in this context with certain systemic diseases, such as scleroderma, led the authors to compare the changes seen in the myenteric plexuses in these different groups of disorders. The intramural plexuses were studied using the technique of B. Smith, in thick frozen section parallel to the lumen and stained using Bielchowsky's method. Plexus innervation was normal in a case of digestive amyloidosis and a case of myxoedema. There were secondary changes in the plexuses in scleroderma. The lesions were very different in our case of idiopathic chronic intestinal pseudo-obstruction (marked decrease in the number of neurones with degenerative changes in the neurones and dendrites, marked schwannosis). A decrease in the number of neurones was seen in a case of severe diabetes. Various mechanisms are discussed. These cases emphasize the great value of B. Smith's technique in the fine study of the intramural plexus innervation of the digestive wall.

Adult↗
PubMed1977

[Heparin].

Explore the source record for details and available documents.

Blood Coagulation↗
PubMed1977

Immunohistochemical patterns of hepatitis B surface antigen (HBsAg) in patients with hepatitis, renal homografts recipients and normal carriers.

A series of 180, Bouin-fixed and paraffin embedded liver biopsies obtained from 147 patients was investigated for the presence of hepatitis B surface antigen (HBs) by histochemical and indirect immunofluorescence techniques. A comparison between orcein staining and Masson's trichrome preparations for ground glass hepatocytes, showed that immunofluorescence was both the more reliable and the more specific method for detection of HBsAg in liver tissue. The ability to perform this technique on paraffin sections facilitates systematic studies and allows retrospective work-up. IF-HBs positive hepatocytes were found in approximately two thirds of all HBs-positive patients in their serum, but never seen in HBs-negative patients. HBs-positive cells were observed in healthy chronic carriers and in all forms of chronic hepatitis, but never in acute HBs-positive hepatitis. In patients treated with chronic hemodialysis and in renal homograft recipients, the incidence of positive cells was higher than in the chronic hepatitis groups; this could be correlated with the duration of antigenemia at the time of biopsy.

Acute Disease↗
PubMed1976

[Gonococcal septicemia. 1 case].

This paper describes a case of disseminated gonococcal infection, a rare disease in France. A 41 year-old woman was hospitalised with acute polyarthritis and characteristics skin lesions. Jaundice and liver function abnormalities are difficult to interpret due to a preexisting alcoholic cirrhosis. The possibility of an endocarditis is raised because of a systolic murmur heard at the base of the heart. Bacteriological identification of N. Gonorrhoeae is carried out in blood culture; it has also been recovered by scrapings of a cutaneous bullae by staining only. Therapy was instituted by daily intravenous penicillin G sodium 50 000 000 u. and intramuscular gentamicin 160 mg for 45 days. There resulted good clinical and bacteriological response. The elements of clinical and bacteriological diagnosis, as well as the therapy are discussed.

Acute Disease↗
PubMedDate not supplied

Lack of in vivo activation of the interferon system in HBsAg-positive chronic active hepatitis.

The in vivo activation state of the interferon system was biochemically evaluated in patients with HBsAg-positive liver disease by assaying the interferon-induced enzyme, 2'5'-oligoadenylate synthetase, in peripheral blood mononuclear cells. All patients with chronic active hepatitis had normal levels of enzyme activity. Increased values were found in 77% of patients with acute hepatitis, 50% of those with chronic persistent hepatitis and 54% chronic healthy carriers. These results provide evidence for lack of activation of the interferon system in HBsAg-positive chronic active hepatitis and support the hypothesis that an in vivo defective interferon response may aid in development of chronic active hepatitis.

2',5'-Oligoadenylate Synthetase↗
PubMedDate not supplied

[Cholestasis caused by an intradiverticular bezoar. Endoscopic treatment].

A 49 year old woman presented with fever. Blood chemistry showed cholestasis. Sonography and abdominal computed tomography showed a dilated biliary tract and a fluid collection in the head of the pancreas. A large, interposed, diverticulum of the second duodenum, filled with a bezoar, was documented by duodenoscopy. The bezoar was fragmented and removed by biopsy forceps. Retrograde visualization of the common bile duct then showed a normal biliary tree with good clearance of contrast material. The ulterior course was uncomplicated. This is the second reported case for cholestasis due to an intradiverticular bezoar in an interposed duodenal diverticula. Diagnosis and treatment were made by duodenoscopy.

Bezoars↗