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Clinical and haemato-pathological characteristics of adult acute lymphoblastic leukaemia.

Acute lymphoblastic leukaemia (ALL) is a heterogeneous group of disorders. It varies with respect to the morphologic, cytogenetic, molecular and immunologic features of the neoplastic cells reflecting the variable clinical-pathologic presentations and outcome of the patients. The aim of the study was to observe the clinical and haemato-pathological characteristics in newly diagnosed adult ALL patients. A total number of 61 patients morphologically diagnosed as acute lymphoblastic leukaemia aged 15 and above assigned for this observational study. The study was carried out in the Department of Haematology, BSMMU from January 2007 to December 2008. Among 61 patients, aged 15 to 80 years with median age 25 years, 79% were male and 21% were female. Most of the patients presented with anaemia (67%), fever (66%), lymphadenopathy (64%) and splenomegaly (57%). Other common clinical findings were hepatomegaly (39%), bone tenderness (44%) and bleeding manifestations (34%). Among haemato-pathological findings 67% patients had Hb level ≤10gm/dl, 46% patients had WBC count ≥30×10⁹/L, 67% patients had platelet count ≤100×10⁹/L, 93% patients had blast in peripheral blood and 61% patients had ≥90 % blasts in the bone marrow at the time of diagnosis. In this study adult ALL patients were analyzed only for their clinical and haemato-pathological characteristics. But their biologic characteristics were not analyzed due to lack of availability of facility. A progressive understanding of the biologic and genetic characteristics of ALL will allow us to identify different prognostic subgroups with specific molecular and cellular features. All the necessary measures have to be developed in our country in order to identify prognostically distinct subgroups of patients.