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From Myeloma to Plasma Cell Leukemia, Persistent Inequalities

Open Journal of Blood Diseases 2023年第4期13卷 133-140页

作者： Mamadou Wague Gueye Nata Dieng Maguette Ndoye Mor Ngom sokhna moumi mbacké daffé Papa Silman Diawara Macoura Gadji Ndèye Marième Diagne Bécaye Fall Laboratory Federation H&#244pital Principal de Dakar (HPD) Dakar Senegal Onco-Hematology H&#244pital Principal de Dakar (HPD) Dakar Sénégal Biological and Oncological Hematology Department (BOHD) Centre National de Transfusion Sanguine (CNTS)/FMPOS-UCAD Dakar Sénégal

Multiple myeloma (MM) is both a complex and heterogeneous disease. Cytogenetic and molecular abnormalities lead to resistance to treatment and transformation to plasma cell leukemia, which is defined by the presence in circulating blood of plasma cells over 2 G/L, or more than 20% of leukocytes. It is an uncommon hematological malignancy with a poor prognosis. Against this backdrop, we report an observation of multiple myeloma transformed into plasma cell leukemia diagnosed at the Hôpital Principal de Dakar (HPD) that occurred on a 64-year-old man with a history of thyroidectomy followed for multiple myeloma presenting with Salmon et Durie stage IIIA and ISS stage I. Despite a marked improvement in management strategy, myeloma remains an almost invariably incurable disease. However, the development of genetic and molecular biomarkers is necessary to improve its prognosis.

关键词： Multiple Myeloma Plasma Cells Leukemia Personalized Medicine Risk Stratification

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Macrophage Activation Syndrome in a Context of Pre-B Type Lymphoblastic Acute Leucemia: A Case Report

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Open Journal of Blood Diseases 2023年第4期13卷 141-147页

作者： Mamadou Wagué Gueye sokhna moumi mbacké daffé Mor Ngom Maguette Ndoye Papa Silman Diawara Nata Dieng Demba Makalou Macoura Gadji Macoura Gadji Awa Oumar Touré/Fall Bécaye Fall Laboratory Federation H&#244pital Principal de Dakar (HPD) Dakar Senegal Onco-Hematology H&#244pital Principal de Dakar (HPD) Dakar Senegal Laboratory CHR Saint-Louis Saint Louis Senegal Biological Hematology and Oncological Hematology Department (BOHD) Centre National de Transfusion Sanguine (CNTS)/FMPOS-UCAD Dakar Senegal Biology H&#244pital Aristide Le Dantec (HALD) Dakar Senegal

Macrophage activation syndrome (MAS) is linked to inappropriate stimulation of macrophage cells in the bone marrow and lymphoid system, resulting in abnormal phagocytosis of figurative blood elements and the release of pro-inflammatory cytokines. It is a rare and serious hyper-inflammatory condition of diagnostic and therapeutic emergency. MAS is characterized by non-specific clinical and laboratory signs associated with images of hemophagocytosis. MAS is either “primary” (familial or pediatric forms), or “secondary/reactive” to infection, neoplasia, or autoimmune disease. Hemopathies dominate MAS secondary to neoplasia. B-type acute lymphoblastic leukemia (ALL) is a hematological malignancy characterized by the proliferation and accumulation of B lymphoid progenitors, blocked at an early stage of differentiation, leading to suppression of polyclonal hematopoiesis and subsequent development of signs associated with bone marrow failure. In this context, we report the observation of a macrophage activation syndrome (MAS) associated with ALL, diagnosed at Hôpital Principal de Dakar/Senegal, in a 69-year-old patient with a well-controlled type 2 diabetes under oral antidiabetic therapy (OAD) and good general condition.

关键词： Macrophage Activation Syndrome Acute Lymphoblastic Leukemia Adult

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Neonatal Thrombocytopenia at Dakar Principal Hospital

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Advances in Infectious Diseases 2023年第4期13卷 586-595页

作者： Guèye Mamadou Wagué Fall Khadija Gadji Macoura Diawara Papa Silman Ndoye Maguette Nakoulima Aminata Diop daffé sokhna moumi mbacké Ngom Mor Fall Mbène Niang Tagouthie Seye Meissa Ndew Fall Bécaye Laboratory Federation Dakar Principal Hospital (DPH) Dakar Senegal Pediatrics Department Dakar Principal Hospital Dakar Senegal Biological Hematology and Oncological Hematology Department (BHOH) National Blood Transfusion Centre (CNTS)/FMPOS Cheikh Anta Diop University Dakar Senegal

Neonatal thrombocytopenia accounts for 20% of neonates hospitalized in the neonatal intensive care unit (NICU) at DPH. The etiologies are multiple, but bacterial infection is the third leading cause of neonatal mortality worldwide. We therefore set out to assess the frequency of neonatal thrombocytopenia associated or not with bacterial infection in the NICU. We conducted a retrospective and prospective study with the DPH NICU, over 10 months (August 2018 and April 2019). Thrombocytopenia encountered in the NICUs, were the subject of research into bacteriological, inflammatory, and epidemiological parameters using Inlog laboratory data processing software. During this period, 1280 babies were hospitalized, 94 of whom underwent thrombocytopenia, corresponding to 7.34%, with a sex ratio of 0.92. The number of babies presenting with thrombocytopenia during the first week of hospitalization was 72, accounting for 76.6%. The clinical context was usually low birth weight in 30.8% of cases and perinatal asphyxia (25%). Thrombocytopenia ranged from 2000 to 137,000 with an average of 69,520/mm3. Among these thrombocytopenias, 64 cases (68%) were below 100,000 mm3 and 44 cases had a CRP >5 mg/l. A total of 30 bacteria were isolated, including 23 Enterobacteria, 2 Streptococci, and 1 Acinetobacter. Among these enterobacteria, 14 were multidrug-resistant (MDR). Thrombocytopenia associated with a multidrug-resistant bacterial infection is a real challenging management.

关键词： Neonatal Thrombocytopenia Bacterial Infection Enterobacteria Newborns

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