Acute lower limb ischemia revealing hypo granular acute promyelocytic leukemia.

Introduction: Acute promyelocytic leukemia (AML-M3), classified as acute Myeloid leukemia with PML RARA according to the 5th edition of the World Health Organization classification of haematolymphoid tumors 2022 [1], is marked by abnormal promyelocyte proliferation and is known for high risks of bleeding and thromboembolic complications. We present a case where lower limb ischemia revealed this leukemia in a child.

Case Report: An 11-year-old with minor ankle trauma developed severe lower limb ischemia, leading to the discovery of subtotal femoral artery thrombosis.

Comparative Study of Cerebrospinal Fluid Evaluation in Patients With Acute Leukemia Using the Manual Method and Sysmex XN-1000.

Background Many pathological settings can be provided by the cytological analysis of cerebrospinal fluid (CSF). In our work, we aimed to evaluate the concordance between the analysis using the reference manual method and the analysis using Sysmex XN-1000. Methods In our study, we examined 121 CSF samples.

Value of hematological parameters for predicting patients with severe coronavirus disease 2019: a real-world cohort from Morocco.

Objective: Coronavirus disease 2019 (COVID-19) is a viral disease caused by severe acute respiratory syndrome coronavirus 2. The clinical manifestations and the evolution of patients with COVID-19 are variable. In addition to respiratory involvement, COVID-19 leads to systemic involvement and can affect the hematopoietic system.

Immunophenotypic challenges in diagnosis of CD79a negativity in a patient with B acute lymphoblastic leukemia harboring intrachromosomal amplification of chromosome 21: a case report.

Background: Being expressed in all stages of B-cell development and having a significant value on the European Group for the Immunological Characterization of Acute Leukemias scoring system, CD79a is considered as an excellent pan-marker for lineage assignment of B cells by flow cytometry. Therefore, any lack or decrease in CD79a expression makes the diagnosis of B acute lymphoblastic leukemia cases very challenging, especially in developing country laboratories where flow cytometry analyses are not always available and, when they are, they are limited in the number of markers used for lineage assignment. Since this case is potentially interesting, we report a B acute lymphoblastic leukemia case with a lack of expression CD79a associated with intrachromosomal amplification of chromosome 21 genetic abnormality.