All publications of “Paulo Augusto Achucarro Silveira”

7 results

Iron overload in a teenager with xerocytosis: the importance of nuclear magnetic resonance imaging

Reijâne Alves de Assis, Carolina Kassab, Fernanda Salles Seguro, Fernando Ferreira Costa, Paulo Augusto Achucarro Silveira, John Wood, [...]

DOI: 10.1590/S1679-45082013000400022

To report a case of iron overload secondary to xerocytosis, a rare disease in a teenager, diagnosed, by T2* magnetic resonance imaging. We report the case of a symptomatic patient with xerocytosis, a ferritin level of 350ng/mL and a significant cardiac iron overload. She was diagnosed by T2* magnetic resonance imaging and received chelation therapy Ektacytometric analysis confirmed the diagnosis of hereditary xerocytosis. Subsequent T2* magnetic resonance imaging demonstrated complete resolution of the iron overload in various organs, as a […]

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 […]