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Biomedical subjects

H Theml

Publications and source records attributed to H Theml.

At least 55 records · Page 3Linked to original sources
PubMed1977

[Retrospective analysis of the clinical relevance of the Kiel classification of malignant non-Hodgkin's lymphomas (author's transl)].

405 cases with non-Hodgkin's lymphomas have been diagnosed according to the Kiel classification and analysed retrospectively. 314 patients with non-Hodgkin's lymphomas of low-grade-malignancy (chronic lymphocytic leukemia, lymphoplasmacytoid, centrocytic, centrocytic, centroblastic-centrocytic lymphoma) manifested significantly higher median survival times than the 91 patients with non-Hodgkin's lymphomas of high-grade malignancy (lymphoblastic and immunoblastic lymphoma). Within the group of patients with low-grade malignant lymphomas distinct prognostic differences were found whereas survival times in patients with lymphoblastic or immunoblastic lymphomas were rather similar. The lymphoblastic lymphoma showed a bimodal curve of age distribution whilst all other lymphomas had a maximum of incidence in the seventh decade of life. Increased frequency of B-symptoms did not necessarily represent an unfavorable prognostic factor for the lymphoma entity concerned. Except for chronic lymphocytic leukemia the highest incidence of initial bone marrow involvement was seen in lymphoplasmacytoid, centrocytic and lymphoblastic lymphomas. Centrocytes have been observed in peripheral blood of patients with centrocytic and centroblastic-centrocytic lymphomas, even though lymphocytosis did not exist. Monoclonal hypergammaglobulinemia was found in only 43% of the sera from patients with lymphoplasmocytoid lymphoma. In this disease, it was possible to differentiate between a lymphonodal, a splenomegalic and an extranodal manifestation.

Age Factors↗
PubMed1976

[T-cell leukemias of adulthood].

9 adult patients suffering from different forms of T-cell-malignancies were investigated: 4 patients with T-ALL; 1-T-ALL-CLL mixed form (prolymphocytic); 2 T-CLL; 2 Sézary-syndrome. The clinical peculiarities of the different forms of leukemias were compared: involvement of lymph nodes and spleen, of the central nervous system and the skin was frequent; in contrast to the findings in Sézary-syndrome, bone marrow infiltration was prominent. Light and electron microscopic morphology of the malignant cells are described. In all cases a strong activity of acid phosphatase was demonstrated, in one patient prominent deposits of glycogen. The T-cell-quality of the respective malignant cell population as well as the B-T-cell distribution of the remaining "normal" lymphocytes were shown by the following cell markers: demonstration of T-cell-antigen, resp. membrane immunoglobulins with the aid of specific heterologous antisera conjugated with peroxidase, 125iodine or fluoresceine; complement consumtion or cytotoxicity with such antisera; spontaneous rosette formation with sheep red cells or with acrylic acid beads. Usually, there was a good coincidence in results obtained with the different markers. In two patients, however, T-cells demonstrated by anti-T-globulin were not able to form T-rosettes. Responsiveness of the malignant T-cells and also of the remaining "normal" blood lymphocytes to different mitogens usually was depressed, immunoglobulin levels in the blood mostly were normal. Taking all findings into consideration, T-cell-leukemias of the adult represent a special group of hematological malignancies; the different subgroups show similarities; transitional forms occur.

Adult↗
PubMed1975

Autotransfusion of 3H-cytidine-labelled blood lymphocytes in patients with Hodgkin's disease and non-Hodgkin patients. II. Exchangeable lymphocyte pools.

The dilution in the circulating blood of lymphocytes lablled in vitro with 3H-cytidine was examined after autotransfusion in 9 patients with Hodgkin's disease (HD) stage II A-IV B, 5 of whom were untreated; in 2 untreated patients with carcinoma, and in 1 treated patient with scleroderma. The blood transit time of exchangeable lymphocytes was 37 +/- 18 min in the patients with HD and 26 +/- 6 min in the other patients. The proportion of exchangeable (recirculating) small blood lymphocytes was 39-84% in HD and 81-91% in the carcinoma patients. The relation between the size of the circulating pool of small blood lymphocytes and the total exchangeable (recirculating) lymphocyte pool was 1:20 to 1:30 in HD and 1:29 to 1:34 in the other patients. The absolute size of the recirculating pool of lymphocytes was 46-90 times 10(9) cells in HD and 100-150 times 10(9) cells in the carcinoma patients.

Adult↗