Morphology and cytochemical diagnosis of hairy cells leukemia

5 Title: Morphology and cytochemical diagnosis of hairy cells leukemia (Bachelor thesis) Author: Lenka Bergerová Department: Charles University in Prague - Faculty of Pharmacy in Hradec Králové, branch of study Medical Laboratory Technician Supervisor: MUDr. Dana Mikulenková Abstract Hairy cell leukemia is the chronic lymphoproliferative disorder of clonal character arising from mature B cells. In the peripheral blood smear and in the bone marrow smear, we find the typical leukemic cells which are characteristic by their size, morphology of cell nucleus and cytoplasm. They are bigger than healthy lymphocytes, and they have most frequently the kidney shaped nucleus with fine net-like chromatin and the cytoplasm projecting into fine salients all over the cell perimeter. In the blood count we usually find a mild pancytopenia. To demonstrate the presence of the pathological cells in the peripheral blood smear and the bone marrow smear, we use the panoptic staining method according to Pappenheim. Among other examinations contributing to the diagnostics of this disease belongcytochemical examination of acid phosphatase and acid phosphatase resistent for tartarate, immunophenotypic findings and trepan bone marrow biopsy. In addition to the typical form of hairy cell leukemia we distinguish another variant form of..