International Journal of Laboratory Hematology

Unicentric Castleman Disease: Updates and Novel Insights Into Spindle Cell Proliferations and Aggressive Forms of a Localized Disease
Alnoor F, Rangel A, Luo M, Silva O, Chisholm KM, O'Malley D, Warnke R, Kumar J and Ohgami RS
Castleman Disease (CD) is a rare lymphoproliferative disorder that can be separated into two primary forms: Unicentric Castleman disease (UCD) and multicentric Castleman disease (MCD). UCD is localized, while MCD is systemic. Though UCD generally has a favorable prognosis following surgical resection, more aggressive forms of this disease have been identified, including cases associated with dendritic and spindle cell proliferation. Genetic analysis has deepened our understanding of UCD. Despite advancements in better understanding the pathophysiology of UCD, challenges persist in the diagnosis, management, and treatment due to its rarity and heterogeneity. Here, we review current knowledge on UCD, highlighting the epidemiology, clinical presentation, diagnostic criteria, and treatment options while emphasizing the need for further research and innovation in therapeutic strategies.
Differential Diagnosis of Lymphocytosis in Routine Laboratory Practice: Contribution of Lymphocyte Parameters Generated by the New Sysmex XR-1000 Hematology Analyzer
Chiriac R, Jallades L and Baseggio L
Atypical Melanocytic Cells in the Cerebrospinal Fluid of a 7-Year-Old Child With Headaches
Li W, Schauwecker S and Gerson T
Diagnostic Implications of CD63 and CD64 Expression Levels and FcγRIIIA 158 V/F Gene Polymorphism in Primary Immune Thrombocytopenia Adult Patients
Elsaid DS, Elbedewy TAE, Soliman NA, Shalaby KA and Haroun RA
Immune thrombocytopenic purpura (ITP) is an acquired autoimmune disease characterized by reduced platelet counts due to immune system dysregulation caused by many factors, including genetics, autoimmune diseases, infections, and inflammations. Therefore, the current study aimed to evaluate immunological markers such as the expression level of lysosomal associated membrane protein 3 (LAMP-3), also known as CD63, and the expression level of Fc-gamma receptor I (FcγRI), also known as CD64 and also investigate the association of Fc-gamma receptor IIIA (FcγRIIIA) 158 V/F polymorphism to the risk of ITP.
Clinical Significance of Complement and Coagulation Cascades Genes for Patients With Acute Lymphoblastic Leukemia
Tang Y, Chen L, Xiao Y, Ran Q, Li Z and Chen M
Acute lymphoblastic leukemia (ALL) is the second most common acute leukemia in adults and the 5-year survival remains low.
Spurious Lymphocyte Differential Counts: An Unusual Cytomorphometric Interference of Target Cells-A Tale of Two Automated Hematology Analyzers
Samuel J and George BA
APEX1 Polymorphisms Affect Acute Myeloid Leukemia Risk, and Its Expression Is Involved in Cell Proliferation and Differentiation
Gotoh N, Oda T, Kitamura Y, Shiraishi N, Aoyagi R, Omori A, Yanagisawa K, Iida M, Itoi Y, Negishi H, Matsumura I, Kasamatsu T, Miyauchi E, Sasaki N, Takada S, Yokohama A, Handa H, Murakami H and Saitoh T
The link between DNA repair gene polymorphisms and cancer susceptibility has gained significant attention. Thus, we investigated the impact of base excision repair (BER) gene polymorphisms on acute myeloid leukemia (AML) risk and pathogenesis.
Relapse of Monomorphic Epitheliotropic Intestinal T-Cell Lymphoma (MEITL) in a Pericardial Fluid
Bera E, Veresezan L, Souissi M, Drieux F, Lebreton P and Bobée V
Mitigating Lipemia Interference in Anti-Xa Activity Measurement Through High-Speed Centrifugation
Herb A, Ousteland C, Proch C, Wimmer J, Mauvieux L and Sattler L
Definition of Significant Platelet Clumping: Should We Review All Samples With a Platelet Clumping Flag From Automated Hematology Analyzer?
Woo S, Kim B, Heo NH, Kim MS, Yoon YA and Choi YJ
This study aimed to determine a definition for significant platelet clumping (PC) and evaluate the performance of the Sysmex XN instrument for detecting platelet clumps.
An Unusual Presentation of EATL
Chiriac R and Baseggio L
Cytomorphological Evaluation in a Pediatric Case of Metastatic Neuroblastoma: A Challenging Diagnosis due to Unusual Differentiation
Truijens K, Van Aerde C, Tousseyn T and Tajdar M
Current Diagnosis of Bleeding Disorders in Lower Income Countries
Mishra DK, Rath A, Parihar M, Vinarkar SS and Kundu A
There have been considerable advances in diagnosing and treating bleeding disorders. But the scenario remains dismal in resource-constrained settings in low and lower-middle-income countries (LMICs). Seventy-five percent of the patients with inherited bleeding disorders do not get diagnosed in LMICs. In resource-constrained settings, infectious disease and malignancies take the major focus. Bleeding disorders do not get prioritised in LMICs, and this leads to underdiagnoses and suboptimal treatment. There are various challenges like financial status, inadequacy of health care infrastructure, lack of patient registry and lack of awareness across medical staff, general population and government stakeholders. The lack of skilled laboratory personnel and laboratory infrastructure for optimal bleeding disorder diagnosis adds on to the problem. World Federation of Hemophilia (WFH) has been at the forefront in developing strategies to overcome some of these inadequacies; however, more active participation of the stakeholders including patients, medical professionals and policy makers is the need of the hour. This review highlights the different challenges in LMICs in diagnosing bleeding disorders, the gap between high-income countries and LMICs and the possible strategies in closing the gap.
Acute Mast Cell Leukemia With Complex Karyomorphism and Karyotypes
Li S and Zhao Y
A 51-year-old woman visited the emergency department because of intermittent fever for more than 2 weeks. Physical examination found symmetrical pitting edema of the extremities. Computed tomography and ultrasound showed multiple serous effusions and splenomegaly. A complete blood cell analysis showed moderate anemia and severe thrombocytopenia. Abnormal cells in a subsequent peripheral blood smear accounted for 5%. The bone marrow smear showed a large number of abnormal cells (69.5%), with large cell bodies and pseudopod protrusions. Huge multinucleated cells were visible. Nucleoli were visible in some nuclei, and mitotic figures were evident. The abnormal cells by peroxidase staining were negative, and the positive rate by periodic acid-Schiff staining was 62%. Bone marrow biopsy revealed diffuse infiltration of heterotypic cells (approximately 80%). Later, she was transferred to the hematology department. The phenotypes by flow cytometry were CD117bri+, CD30+, MPO-, CD2-, and CD25-. The molecular test for KIT gene mutation was negative, and multiple karyotypes were abnormal and complex. The final diagnosis was mast cell leukemia. The patient eventually died approximately 1 month after the diagnosis.
Negative Expression of CD117 Predicted Inferior OS and PFS in Acute Promyelocytic Leukemia
Yuan J and Wang Q
Preanalytical Conditions Impact Fibrin Monomers but Not D-Dimer: A Study With Rigorous Comparisons of a Broad Range of Simulated Conditions
Bouarroudj HZ, Hardy M, Lecompte T and Mullier F
FLAER Revealed Normally Expected Non-PNH FLAER-Dim Immature Myeloid Cells (CD117+/CD34-) In Bone Marrow Aspirates and Could Be Utilized as a Marker of Hierarchical Hematopoiesis
Karela C, Tsagarakis NJ, Oudatzis G, Xanthopoulos V, Milaiou M, Nikolaou S, Zina V, Vasileiou P, Karianakis G, Marinakis T, Griva E and Paterakis G
Fluorescently labeled aerolysin (FLAER) is widely used for the identification of paroxysmal nocturnal hemoglobinuria (PNH) clones in peripheral blood (PB) samples. However, there are only a few reports on the differential fluorescent intensity of FLAER in normal bone marrow (BM) cell subpopulations. The purpose of this study was to evaluate FLAER expression during normal and pathological hematopoiesis, to map the critical existence of non-PNH FLAER-dim cells.
Acute Myeloid Leukaemia With Morphologic and Immunophenotypic Differentiation to Acute Erythroid Leukaemia at the Time of Relapse
Liston K and Mykytiv V
Overview on Hereditary Spherocytosis Diagnosis
Polizzi A, Dicembre LP, Failla C, Matola TD, Moretti M, Ranieri SC, Papa F, Cenci AM and Buttarello M
Hereditary spherocytosis (HS) is a congenital haemolytic disorder, resulting from plasma membrane protein deficiency of red blood cells (RBCs). Typical pathological signs are anemia, jaundice, and splenomegaly; in newborns, jaundice is the main symptom.
Chronic Myeloid Leukaemia (CML) in T-Lymphoblastic Blast Crisis With Near Early T Cell Progenitor (ETP) Immunophenotype
Xu K, Vistsaras E and Gupta R
Role of Preoperative Inflammatory Blood Cell Indexes as a Postoperative Risk Predictor Among Patients Undergoing On-Pump Cardiac Surgery
Rödel APP, Fernandes YM, Brisolara JV, De Carvalho JAM and Moresco RN
Estimating patient risk before heart surgery (HS) is crucial. Perioperative inflammation is associated with several complications and mortality. This study investigated blood cell count inflammatory indices (BCCII) to predict risks, including neutrophil-to-lymphocyte ratio (NLR), derivate NLR (DNLR), neutrophil-to-platelet-lymphocyte ratio (NLPR), lymphocyte-to-monocyte ratio, platelet-to-lymphocyte ratio (PLR), Systemic Inflammatory Index (SII), Systemic Inflammatory Reaction Index (SIRI), and Aggregate Index of Systemic Inflammation (AISI).