PMID: 2101643Jan 1, 1990Paper

Granular CALLA-positive acute lymphoblastic leukemia

Investigación clínica
L De Salvo CardulloD Salas

Abstract

One of the main criteria in the differentiation between acute lymphoblastic (ALL) and acute myeloblastic leukemias (AML) is the presence of granules in the blasts of the latter. Recently, several groups have described a form of ALL with prominent intracytoplasmatic granules (G-ALL) in the blasts. The granules in the G-ALL blasts do not contain myeloperoxidase, but sometimes have lipids that stain with Sudan black B (SBB). We describe a case of G-ALL in a five-year-old girl whose peripheral blood and bone marrow was compound of 98% lymphoblasts, 30% of which, had prominent azurophilic intracytoplasmatic granules. The granules did not have peroxidase, acid phosphatase, varies; is directly proportional to naphthyl acetate esterase. However 5% of the blasts had sudanophilic granules and 60% were positive for the periodic acid-Schiff reaction. The blasts expressed the CD10 (CALLA) and Dr antigens, and were negative for surface immunoglobulins or the CD4, CD8, or CD14, antigens. Only 18% of cells formed rosettes with sheep erythrocytes. The patient responded to vincristine, prednisone and L-asparaginase. Based on the finding we diagnosed this as a CALLA positive G-ALL. By conventional criteria this case would have been wrongly classi...Continue Reading

Related Concepts

Related Feeds

Acute Myeloid Leukemia

Acute myeloid leukemia (AML) is a clinically and genetically heterogeneous disease with approximately 20,000 cases per year in the United States. AML also accounts for 15-20% of all childhood acute leukemias, while it is responsible for more than half of the leukemic deaths in these patients. Here is the latest research on this disease.

Blood And Marrow Transplantation

The use of hematopoietic stem cell transplantation or blood and marrow transplantation (bmt) is on the increase worldwide. BMT is used to replace damaged or destroyed bone marrow with healthy bone marrow stem cells. Here is the latest research on bone and marrow transplantation.

AML: Role of LSD1 by CRISPR (Keystone)

Find the latest rersearrch on the ability of CRISPR-Cas9 mutagenesis to profile the interactions between lysine-specific histone demethylase 1 (LSD1) and chemical inhibitors in the context of acute myeloid leukemia (AML) here.