[Study of antigenic profile of blasts in acute lymphoblastic leukemia: flow cytometric analysis of 152 cases].

The aim of this study was to characterize the antigenic profile of blasts in acute lymphoblastic leukaemia (ALL) and to determine possible phenotypic aberrancies in a series of 152 patients with acute leukaemia diagnosed non myeloid leukaemia in cytology. Samples were analyzed by EPICS XL flow cytometer (Beckman Coulter) after staining with monoclonal antibodies(Beckman Coulter). Based on criteria of EGIL (European Group of Immunological Leukaemia), cases were classified as: acute lymphoblastic leukaemia (ALL, 52,6%); 75% cases of ALL belong to lymphoid B lineage.

[Cytological features of acute leukaemia in the central region of Tunisia].

In Tunisia, because of an absence of population registry, data on acute leukaemia are scarce. We studied the epidemiological and cytological characteristic of 193 patients with acute leukaemia. Haemograms were carried out and slides for peripheral blood and bone marrow were prepared for each patient.

Antiphospholipid syndrome and retinal vein occlusion in adults.

Antiphospholipid antibodies may play and important role in the pathogenesis of retinal vascular occlusions; investigated the prevalence among 33 patients with retinal vein and artery occlusions and 80 controls. Prevalence was 33% and 5% respectively. Ophthalmic examination and fluorescein angiography showed that occlusions were due to ischaemic events.