A case of chronic myeloid leukemia with features of essential thrombocythemia in peripheral blood and bone marrow
نویسندگان
چکیده
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm characterized by overproduction of myeloid white blood cells. Philadelphia chromosome is an essential finding for CML diagnosis. Generally, a clinical diagnosis of essential thrombocythemia (ET) can be established from isolated marked thrombocytosis in peripheral blood. However, Philadelphia chromosome-positivity or bcr/abl rearrangement with isolated thrombocytosis should be diagnosed as CML, not ET, according to World Health Organization diagnostic criteria. Therefore, CML should not be excluded before confirming the presence of the Philadelphia chromosome or bcr/abl rearrangement in cases of isolated thrombocytosis in peripheral blood. We report a case of CML with clinical features of ET in a patient successfully treated with imatinib.
منابع مشابه
A Rare Case of Acute Myeloid Leukemia with Translocation (3:3) Presenting with Features of Chronic Myelomonocytic Leukemia
Background: Acute Myeloid Leukemia (AML) with translocation (3,3) is a form of AML that may present de novo or may arise from a previous myelodysplastic syndrome. It is often associated with normal or elevated peripheral blood platelet count and increased bone marrow megakaryocytes with associated multi lineage dysplasia. A subset of patients present with hepatosplenomegaly while a few cases h...
متن کاملUnusual ophthalmic manifestation in chronic myeloid leukemia: A case report
Background: Chronic myeloid leukemia (CML) is a myeloproliferative hematopoietic malignancy with a heterogeneous proliferation of hematopoietic cells in the bone marrow. The ocular manifestations are rare symptoms of CML. In this case report, a CML patient with retinal hemorrhage is reported as an uncommon symptom. Case presentation: A 35-year-old man was referred due to decreased right eye vi...
متن کاملAdvances in Hematopoietic Stem Cell Mobilization and Peripheral Blood Stem Cell Transplantation
Hematopoietic stem/progenitor cells (HSPCs) which give rise to different blood cell types are present within the bone marrow microenvironment, especially in flat bones such as skull, vertebrae, pelvis and chest. Interacting factors such as stromal derived factor-1/CXCR4, very late antigen-4/vascular cell adhesion molecule-1, Lymphocyte function-associated antigen-1/ intercellular adhesion molec...
متن کاملUnilateral Ptosis as Initial Manifestation of Acute Myeloid Leukemia
Abstract Background In Acute Myeloid Leukemia (AML), malignant clones of immature myeloid cells (primarily blasts) proliferate, replace bone marrow, circulate in blood and invade other tissues. The unique presentation of unilateral ptosis and unilateral eyelid swelling in AML has been reported during the present study. Case Report A 7-year-old girl was encountered with progressively increa...
متن کاملMolecular Pathogenesis of Chronic MPDs
Chronic myeloproliferative disorders (MPDs), first proposed by Dameshek in 1951, are clonal hematopoietic stem cell disorders characterized by proliferation of 1 or more myeloid cell lineages in the bone marrow and increased numbers of mature and immature cells in peripheral blood.1 According to the World Health Organization classification, MPDs include polycythemia vera (PV), essential thrombo...
متن کامل