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Biomedical subjects

F Klotz

Publications and source records attributed to F Klotz.

At least 55 records · Page 3Linked to original sources

[Annulo-aortic ectasia syndrome apropos of 4 cases].

The authors present four cases of annuloaortic ectasia recently observed in Dakar Principal Hospital; two cases are MARFAN's syndrome, one is complicated by aortic dissection. Third cause of aortic regurgitation, this disease must be diagnosed early on account of its bad prognosis with the risk of the dissection of the aorta and issue to cardiac insufficiency. The diagnosis is more often affirmed by transthoracic echocardiography. Treatment is surgical with low operative mortality and excellent long term result.

Adult↗

[Helicobacter pylori and upper digestive disease at the Main Hospital of Dakar. Study apropos of 105 consecutive endoscopies].

Gastro-duodenal ulcer is a very frequent disease in Senegal and Helicobacter pylori (HP) being an ubiquitarian germ infects people living in developing countries in an over-early way and this most frequently. We have realized a prospective study dealing with 105 adult patients sent to hospital principal's endoscopy center. We were searching for HPs into three different methods which are as follows: using ordinary slats, clo-test, histological process. The results have confirmed the existence of a very high rate of infection due to HP, with among adults living in developing countries: 82% of our study. Likewise 95.8% of our ulcerous and erosive injuries at the bulb and 93.8% ulcerous and erosive gastric attacks were associated to HP infection. Those gastric and bulbar lesions were known to have followed a mild but chronic gastritis.

Adult↗

[Epidermoid cysts of the spleen. Apropos of two cases: review of the literature].

Benign cysts of the spleen (excepting parasites) are rare. Less than 10% of the cases involve epidermoid cysts, as the two cases reported here. These lesions are often asymptomatic and can lead unspecific clinical manifestations. The diagnosis is based on echography and abdominal computed tomography. Generally, imagery can eliminate a hydatic cyst of the spleen but cannot differentiate between different types of non-parasite cysts. Major complications including rupture and intracystic haemorrhage, malignant transformation and the impossibility of obtaining a preoperative histological diagnosis make surgery the only possible treatment. A conservative approach with partial splenectomy is the usual option, but total splenectomy may be required. The question of whether surgery is always necessary for small asymptomatic cysts of the spleen in under debate. Certain authors suggest that only regular echographic monitoring is necessary.

Adolescent↗

[Spontaneous intramural hematoma of the esophagus. Apropos of a case].

The authors report a case of spontaneous intramural haematoma of the oesophagus. This is a rare observation which usually occurs in association with oesophageal hyperpressure and sometimes with impaired haemostasis. The strategy for diagnosis is based on tomodensitography and also endosonography and magnetic resonance imagery.

Aged↗

[Common variable hypogammaglobulinemia. A rare cause of chronic diarrhea. A case].

In patients with chronic diarrhoea investigations exceptionally reveal a common variable hypogammaglobulinaemia. A 42-year old man presenting with chronic bronchitis and asymptomatic post-hepatitis B cirrhosis was hospitalized for evaluation of a chronic diarrhoea accompanied by altered general condition. Investigations detected global hypogammaglobulinaemia, diffuse lymphoid hyperplasia of the small bowel, and lambliasis. Treatment with gammaglobulins and antibiotics resulted in disappearance of symptoms. This was a rare disease due to a primary disorder where global hypogammaglobulinaemia was associated with a normal number of circulating B-cells. Prognosis was cautious in view of the risk of malignant proliferation.

Adult↗

Non-Hodgkin lymphoma in Gabon and its relation to HTLV-I.

A case-control study was performed in Libreville, Gabon, to determine whether a relationship can be established between the relatively high proportion of non-Hodgkin lymphoma (NHL) among all cancer cases and the high seroprevalence rate of HTLV-I observed, and to discover whether cases of adult T-leukemia/lymphoma (ATLL) related to HTLV-I exist in Gabon. From November 1987 to April 1989, a total of 32 patients with NHL were recruited; 6 were infants with Burkitt's lymphoma and 26 were adults with NHL. Each patient was matched with 2 asymptomatic controls for age, sex and ethnic group. HTLV-I serology was done by ELISA and Western blot. Comparison of the groups was done by chi-square analysis. None of the 6 infants with Burkitt's lymphoma and none of their controls had antibodies to HTLV-I. Of the 26 patients with NHL, 7 (26.9%) had HTLV-I antibodies. Among the 52 controls, the HTLV-I rate was 13.4% (n = 7). There was no difference between cases and controls (Fisher's exact test, p = 0.16). Among the 26 NHL, 4 cases fitted the criteria of ATLL and were HTLV-I-positive; 3 others who were positive for HTLV-I were a woman with lymphoblastic gastric NHL and 2 old men with an unclassified lymphoma. From the results of this limited series it is not possible to state that there is an association between NHL and HTLV-I infection. Nevertheless, cases of ATLL related to HTLV-I are reported from this area. Based on the HTLV-I seroprevalence rates reported in Gabon, the estimated incidence rate of ATL among seropositive people in Gabon appears much lower than in Japan. Different explanations can be proposed, but under-diagnosis of ATLL is probably one of the main factors.

Adolescent↗

[Sicca syndrome and low-grade chronic viral hepatitis C. Apropos of a series of 50 cases].

Systemic manifestations are described in chronic hepatitis C. Haddad et al have showed the prevalence of sicca syndrome with lymphocytic sialadenitis. We analysed prevalence in 50 patients suffering from chronic hepatitis C with histologic low rank. 50% of them have pronounced abnormality of lachrymal secretion without sialadenitis. It seems that sicca syndrome is present in low rank hepatitis. In that case xerophtalmia preceded xerostomia.

Hepatitis C↗

[Healthy and pseudo-healthy carriers of hepatitis B virus. A comparative clinical, biological and pathological approach].

From a series of 100 patients hospitalized for chronic hepatitis B infections (HBV), 51 chronic carriers of the HBs antigen without elevated aminotransferases or circulating HBV DNA were studied retrospectively. They had no unusual epidemiological or clinical features compared to the other patients, but were distinguished by their normal liver function tests, except for 5 cases of isolated hypergammaglobulinemia. Hepatic biopsies performed on 28 patients showed minor lesions or normal tissue in 61% of the cases and persistent chronic hepatitis (PCH) in 39% of them. No clinical or biological abnormality was significantly associated with PCH, which was attributed to a delta hepatitis (HDV) superinfection in only one case. There were no cases of active chronic hepatitis or cirrhosis. The significance of the histological lesions in the absence of HBV replication or other symptoms of hepatocyte aggression was not elucidated; their longterm prognosis is not known even if no other difference, identifiable by usual methods, seems to exist between these "pseudo-healthy" carriers and real healthy carriers of HBV.

Adult↗

Malignant lymphomas in Gabon (equatorial Africa): a morphologic study of 72 cases.

A retrospective morphologic analysis was conducted on 72 malignant lymphomas collected in Gabon, a country of the equatorial area in Africa. Non-Hodgkin's lymphomas (NHLs) were by far the most frequent type of lymphoma, representing 67 cases (93%); only five patients (7%) had Hodgkin's disease. Non-Hodgkin's lymphomas were classified according to two modern systems (Kiel and Working Formulation). The age distribution of NHL patients was bimodal, with the highest peak in the 0 to 14 years age group (these cases were almost exclusively associated with Burkitt's lymphomas), and with the second highest peak in the 55 to 64 years age group. The male to female ratio was 2.5:1, and the overall median age was 44 years. According to the Working Formulation, the NHL cases were composed of one follicular lymphoma (1.5%), 55 diffuse lymphomas (82%), and 11 miscellaneous lymphomas (16.5%). Burkitt's lymphoma was the most frequent NHL (17 cases; 25.4%), followed by diffuse large cell lymphoma (15 cases; 22.4%) and immunoblastic lymphoma (nine cases; 13.4%). Consequently, high-grade NHL formed the largest group (28 cases; 42%), intermediate-grade NHL formed the next largest group (21 cases; 31.3%), and low-grade NHL formed the smallest group (seven cases; 10.4%). These data are compared with series from developed and developing countries, and the observed differences in distribution of the histologic subtypes of malignant lymphoma are discussed.

Adolescent↗