All publications of “Elvira Deolinda Rodrigues Pereira Velloso”

4 results

The detection of KIT mutations in acute myeloid leukemia

Luis Eduardo Silva Machado, João Renato Rebello Pinho, Roberta Sitnik, Nair Hideko Muto, Elvira Deolinda Rodrigues Pereira Velloso, Roberta Cardoso Petroni, [...]

DOI: 10.1590/S1679-45082012000300005

Objective:This study describes a new method used in the clinical laboratory at Hospital Israelita Albert Einstein to detect mutations in exons 8 and 17 of the KIT gene in patients with acute myeloid leukemia.METHODS:Genomic DNA extraction was performed on 54 samples of peripheral blood or bone marrow from patients with acute myeloid leukemia. The extracted DNA was amplified by polymerase chain reaction and sequenced, and the fragments were analyzed.RESULTS:Within the analyzed samples, we detected four mutations in exon 8, two […]

Correlation between flow cytometry and histologic findings: ten year experience in the investigation of lymphoproliferative diseases

Alanna Mara Pinheiro Sobreira Bezerra, Denise da Cunha Pasqualin, João Carlos de Campos Guerra, Marjorie Paris Colombini, Elvira Deolinda Rodrigues Pereira Velloso, Paulo Augusto Achucarro Silveira, [...]

DOI: 10.1590/S1679-45082011AO2027

ABSTRACT Objective: To demonstrate the advantages of correlating flow cytometry immunophenotyping with the pathology/ immunohistochemistry of lymph nodes or nodules in the diagnosis of lymphoproliferative diseases. Methods: A retrospective study was carried out of 157 biopsy or fine-needle aspiration lymph nodes/ nodule specimens taken from 142 patients, from 1999 and 2009. The specimens were simultaneously studied with fow cytometry and pathology at Hospital Israelita Albert Einstein. The specimens were prepared in hematoxylin/eosin, Giemsa, or monoclonal antibody stained slides for detecting […]

Molecular and cytogenetic abnormalities in acute myeloid leukemia: review and case studies

Elvira Deolinda Rodrigues Pereira Velloso, Carlos Henrique Ares Silveira da Motta, Juliana Braga Furtado, Nydia Strachman Bacal, Paulo Augusto Achucarro Silveira, Cynthia Bachir Moyses, [...]

DOI: 10.1590/S1679-45082011AO2041

ABSTRACT Objective: To study the frequency of mutations that may lead to a good or bad prognosis, as well as their relation with the karyotype and immunophenotype in patients with acute myeloid leukemia. Methods: Thirty samples of patients with acute myeloid leukemia were studied, in which FLT3-ITD, FLT3-TKD and NPM1 mutations were investigated. All samples were submitted to immunophenotyping and 25 to karyotyping. Results: An occurrence of 33.3% NPM1 mutation and an equal number of FLT3-ITD mutation were observed. When […]