Parvovirus B19 (PV B19) is a nonenveloped single-stranded DNA virus that causes wide variety of diseases ranging from benign childhood infection such as slapped-cheek syndrome to life threatening hydrous fetalis in fetuses or aplastic anemic crises patients with hemolytic anemia. In immunocompromised hosts including organ transplant recipients, PV has incorporated into red blood cell progenitor...

Severe aplastic anemia is a rare bone marrow failure disease with the majority of cases caused by aberrant immune destruction of blood progenitors. Although the Th1-mediated pathology of aplastic anemia is well-described, the molecular mechanisms that drive disease progression remain ill-defined. The NOTCH signaling pathway mediates Th1 differentiation in the presence of polarizing cytokines, a...

Acute lymphoblastic leukemia is the most common malignancy in pediatric patients; its diagnosis is usually easy to establish as malignant lymphoblasts invade the bone marrow and peripheral blood. Some acute lymphoblastic leukemia patients may initially present with pancytopenia and a hypoplastic bone marrow leading to the initial diagnosis of aplastic anemia. In most of these patients clinical ...

The hematotoxicity of benzene exposure has been well known for a century. Benzene causes leukocytopenia, thrombocytopenia, pancytopenia, etc. The clinical and hematologic picture of aplastic anemia resulting from benzene exposure is not different from classical aplastic anemia; in some cases, mild bilirubinemia, changes in osmotic fragility, increase in lactic dehydrogenase and fecal urobilinog...

anemia is the most common hematologic disorder in patients with ulcerative colitis (uc). in some cases, normochromic anemia results from the presence of chronic disease; however blood loss or malabsorption may lead to an iron deficiency anemia with hypochromic appearance. other rare hematologic manifestations associated with uc include myelodysplastic syndromes and leukemia. several investigato...