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Biomedical subjects

R Piéron

Publications and source records attributed to R Piéron.

At least 19 recordsLinked to original sources
PubMed1983

[Critical study of serodiagnosis of Yersinia infections].

The study concerns 100 patients who are divided in two dissimilar groups. The first group is composed of 39 patients who have signs of possible Yersiniosis infection. In second group composed of 61 cirrhotics patients, the serodiagnosis was systematic. The rate of positive serology, comparing with healthy patients, is significantly high in both groups: 61,5 p. 100 (first group) 64 p. 100 (second group). Six cases in the first group were very likely caused by Yersinia infection and confirm the utility of the serodiagnosis in front of evocative symptomatology. But many positive serodiagnosis remain unexplained and the greatest care must be taken in appreciation of these results. Among cirrhotic patients, the positive serology is not correlated with evocative symptoms and would be the result of asymptomatic bacteriemias.

Humans↗
PubMed1982

[Hepatic tuberculosis: anatomical and clinical findings. A review of forty-six cases (author's transl)].

Over eight years the authors recorded 46 cases of hepatic tuberculosis. Most cases occurred in patients from black Africa. Forty-five patients had at least one extrahepatic tuberculous localization. Moderate cholestasis, without jaundice, found in 75% of patients, was the main biologic disorder. Upon histologic examination, five different types of granulomas were found. Each one has a specific predictive value concerning the outcome of the tuberculous infection.

Adult↗
PubMed1982

[Colic carcinoma and basal cell epithelioma eleven years after Kaposi sarcoma with splenic and cutaneous involvement (author's transl)].

A case of Kaposi sarcoma (KS) with cutaneous and splenic involvement is reported. Carcinoma of the left colon and basal cell epithelioma arose eleven years after KS. Genetic, viral, and immunologic factors which may promote initiation and development of Kaposi sarcoma are reviewed. The responsibility of immunodeficiency, whether resulting from therapy or from other causes, in carcinogenesis is discussed. Prolonged survival may be seen after KS. Another primary malignant disease (lymphoma or solid tumor) may arise. The authors suggest that the risk of immunologic disorders, occurring spontaneously or induced by therapy, should be considered specifically for each patient with KS.

Adenocarcinoma↗
PubMed1982

[Primary reticulum-cell sarcoma (Parker-Jackson sarcoma) of the rib. Report of a case with a five-year survival after surgery, radiation therapy and chemotherapy (author's transl)].

A case of primary reticulum-cell sarcoma of the rib is reported. This rare tumor arose in an unusual site and was revealed by an exceptional clinical picture. Extensive hemothorax was the initial manifestation. Follow-up exceeds five years. Prognosis is not as poor for reticulum-cell sarcoma as for Ewing sarcoma. After radical surgery, radiation therapy and chemotherapy, the five-year total remission rate approximates 50%.

Adult↗
PubMed1982

[Stenosis of the right pulmonary artery secondary to carcinoma of the left lung. Effect of radiation therapy (author's transl)].

A case of undifferenciated carcinoma of the left lung with stenosis of the right pulmonary artery is reported. The characteristic clinical features of the systolic ejection murmur in pulmonary artery stenosis are recalled as well as the data from phonocardiographic, angiographic, and hemodynamic investigations. After radiation therapy, the grade of the systolic murmur decreased frankly although transiently. Noticeable decrease of the stenosis was substantiated by a second angiography. This improvement was still apparent 16 months later during chemotherapy.

Bronchial Neoplasms↗
PubMed1982

[Osteo-onychodysplasia (nail-patella syndrome): a case-report (author's transl)].

A case of osteo-onychodysplasia (nail-patella syndrome) is reported. Features of this inherited condition include hypoplastic nails, hypoplastic to absent patellae, subluxation of the patellae, elbow dysplasia, and spurs in the posterior ileum (this last feature was absent in our patient). The nail hypoplasia is the most suggestive abnormality. Patients should be investigated for renal involvement which is a poor prognosis factor. In patients without renal involvement, prognosis is good.

Humans↗
PubMed1982

[Toxopachyosteosis of the tibial and fibular diaphyses (Weismann-Netter and Stuhl syndrome) (author's transl)].

Two cases of toxopachyosteosis involving the tibial and fibular diaphyses are reported. This rare condition, which is usually well tolerated, was first described by Weismann-Netter and Stuhl in 1954. This dysplasia affects both tibias and fibulas and usually results in symmetrical deformations. Characteristic features are anterior bowing of affected bones, with posterior thickening of the cortices. There are few clinical manifestations; small stature, often with delayed onset of walking. Biological investigations are negative. Roentgenograms often show embedding of the last lumbar vertebra with horizontalization of the sacrum. Scoliosis is a common finding.

Aged↗
PubMed1982

[Two cases of pentastomiasis observed in Paris (author's transl)].

The observations of two black African patients seen among 940 hospitalized patients are reported. Intraabdominal calcified larvas, probably of Porocephalus (Armillifer) armillatus were found in both patients. The cycle of this Pentostomida is recalled. Attention is drawn to the role of snake slime in accidental contamination of human beings. In man, this parasitic infection is almost always asymptomatic and detected fortuitously on roentgenograms, or during surgery or necropsy.

Adult↗
PubMed1980

[Fever, hepatic granulomatosis, electrocardiogram changes, and a positive serodiagnosis for Yersinia enterocolitica: two case reports (author's transl)].

Though no bacteria were isolated, a diagnosis of Yersinia enterocolitica infection was confirmed in two patients by strongly positive serology tests, with levels much above the normal. Both patients had fever, hepatic granulomatosis, and electrocardiogram anomalies, and there was associated dysuria and prostatitis in one case. The authors review the hepatic, urinary, and electrocardiogram manifestations reported in the published literature, and describe the antigenic and serologic relationships existing between Y. enterocolitica type 9 and Brucella abortus.

Adult↗
PubMed1977

[Criteria of identification of schistosomiasis caused by Schistosoma hamatobium and S. mansoni (486 patients: 275 case of schistosomiasis)].

Out of a total of 486 patients who originated from French Equatorial Africa, from the West Indies or from the Indian Ocean, the authors identified 275 cases of schistosomiasis of which 230 were due to S. Hematobium and 45 to S. Mansoni. The diagnostic methods were biopsy of the rectal mucosa, immunofluorescence, in the West Indians, examination of the stools, in the Africans examination of the urine, intravenous urography and less often cystoscopy. The value of these investigations was studied in each case, then by comparison with one another and with data in the literature. The most valuable investigation was biopsy of the rectum, better in Africans than examination of the urine, immunofluorescence and better than cystoscopy when this was possible.

Adolescent↗
PubMed1977

[Value of bone marrow biopsy in solid tumors. Apropos of 96 cases].

This study of 96 bone biopsies carried out in 84 patients with various malignant solid tumours showed 27 normal bone marrows, 21 hypoplastic marrows, 34 irritant marrows and 14 metastatic marrows. All the patients in the last group and 75% of those with signs of irritation already had other metastases. Tolerance to chemotherapy was better in the normal marrows than in the other cases. There was a significant relationship between the irritant or metastatic or metastatic aspect and the existence of peripheral leucoerythroblastosis (metastatic marrows) or increased platelets (irritant appearances). A significant difference existed during the first five months of survival between these cases with a metastatic marrow and those with an iritant marrow. Bone biopsy should, in our opinion, form part of the routine investigation of cancer patients. It may identify metasine investigation of cancer patients. It may identify metastases where radiography and bone scans have failed.

Biopsy, Needle↗
PubMed1977

[10 cases of multiple malignant tumors].

The authors report ten cases of multiple malignant tumours noted on a general medical unit : 4 cases of chronic lymphatic leukemia associated with one visceral carcinoma. One case of polycythemia associated with a bifocal colonic carcinoma and a skin carcinoma. 5 double carcinomas mainly bronchial and digestive. They recall the general characteristics of these multiple carcinomas and discuss their pathogenesis with special reference to factors of immunodepression and genetic factors.

Age Factors↗