“Preleukemic or smoldering” chronic myelogenous leukemia (CML):BCR-ABL1 positive: A brief case report
نویسندگان
چکیده
Chronic myelogenous leukemia (CML), in the Chronic Phase (CP), is often suspected as a result of a complete blood count (CBC), which shows increased granulocytes, mostly mature including a peak in myelocytes, increased basophils, and rarely blasts and/or promyelocytes. Morphologic dysplasia is not present. CML is confirmed by detecting the characteristic Philadelphia chromosome (Ph)[t(9;22)(q34;q11.2)] by routine cytogenetics or fluorescent in situ hybridization (FISH) or molecular studies (RT-PCR) for the bcr-abl fusion gene. The most common feature of CML is an elevated WBC count, usually above 25×10(3)/µL, and frequently above 100×10(3)/µL. We report a case of confirmed Ph+CML with a normal CBC detected because of the presence of rare myelocytes and 2% basophils [Fig. 1]. Previous leukocyte counts for the preceding eight years were normal with the exception of one done four months prior to his presentation that showed an abnormal differential with 1% basophils, 2% metamyelocytes and 2% myelocytes.
منابع مشابه
“Chronic myelogenous leukemia in primary blast crisis” rather than “de novo BCR‐ABL1‐positive acute myeloid leukemia”
Differentiating chronic myelogenous leukemia in primary blast crisis (CML-BC) from de novo BCR-ABL1-positive acute myeloid leukemia (AML) is a diagnostic challenge with therapeutic consequences. In our case, a basophilia, the presence of the Philadelphia chromosome in all metaphases and the strict exclusion of molecular hallmarks of AML lead us to retain the diagnosis of CML-BC rather than BCR-...
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 کاملDetection of Jak2 V617f Mutation, Secondary to the Presence of Bcr-Abl1 Translocation in a Patient with Chronic Myeloid Leukemia: Report of a Case and Review of the Literature
The Myeloproliferative Neoplasms (MPN) are classified as four major diseases: Chronic Myeloid Leukemia (CML), Polycythemia Vera (PV), Primary Myelofibrosis (PMF) and Essential Thrombocythemia (ET) [1]. The translocation t(9;22)(q34;q11) produces the Philadelphia chromosome and causes the BCR-ABL1 transcript; this alteration is commonly found in CML [1]. In 2008 the World Health Organization (WH...
متن کاملNeutrophilic-chronic myeloid leukemia: A case report.
Neutrophilic-chronic myelogenous leukemia (CML-N) is a rare chronic myelogenous leukemia (CML) variant characterized by BCR-ABL1 positive chronic neutrophilia. It has a BCR breakpoint on chromosome 22 between exons 17 and 20 in a region designated as micro-BCR. It is thought to have a more benign course than classical CML. This case report describes a 41-year-old Saudi woman diagnosed with CML-...
متن کاملCoexistence of BCR-ABL1 Translocation and JAK2 V617F Mutation in a Patient with Chronic Myeloid Leukemia Under Long-term Treatment with Imatinib and Nilotinib: A Case Report
This report describes an 89-year-old woman diagnosed with Philadelphia positive Chronic Myeloid Leukemia in 2007 who was initially treated with 200 mg/day imatinib. The patient demonstrated complete molecular response (CMR) in two tests in 2015 and 2018. During treatment between 2007 and 2019, despite increased dosage of imatinib and switching her therapy to nilotinib, complete hematological r...
متن کامل