Volume 105, Issue 2 pp. 394-401

Acute leukaemia immunophenotyping in bone-marrow routine sections

Stefano Aldo Pileri

Stefano Aldo Pileri

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Stefano Ascani

Stefano Ascani

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Marina Milani

Marina Milani

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Giuseppe Visani

Giuseppe Visani

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Milena Piccioli

Milena Piccioli

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Giulio Fraternali Orcioni

Giulio Fraternali Orcioni

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Simonetta Poggi

Simonetta Poggi

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Elena Sabattini

Elena Sabattini

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Donatella Santini

Donatella Santini

Service of Pathologic Anatomy and Haematopathology, Institute of Haematology and Clinical Oncology ‘L. & A. Seràgnoli’, Bologna University, Bologna,

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Brunangelo Falini

Brunangelo Falini

Institute of Haematology, Perugia University, Perugia, Italy

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First published: 17 February 2005
Citations: 46
Professor Stefano A. Pileri Servizio di Anatomia Patologica ed Ematopatologia, Istituto di Ematologia e Oncologia Medica ‘L. e A. Seràgnoli’, Università di Bologna, Policlinico S. Orsola, Via Massarenti 9, 40138 Bologna, Italy. e-mail: pileri@ almadns.unibo.it

Abstract

Immunohistochemistry of acute leukaemias in bone-marrow paraffin sections is commonly thought to be useless because of the poor preservation of many lineage-related markers. The recent development of antibodies against fixative-resistant epitopes and of new antigen retrieval techniques, however, has expanded the possibility of accurately testing routine samples. To assess the relevance of paraffin section phenotyping in lineage determination, 110 examples of acute leukaemia were studied by specific antibodies against CD1a, CD3, CD15, CD20, CD34, CD68, CD79a, TdT, myeloperoxidase, glycophorin A, and factor-VIII-related antigen. The cases included 59 acute myeloid leukaemias, classified according to the FAB cooperative group criteria, 39 precursor B-cell acute lymphoblastic leukaemias (ALLs), seven T-ALLs, and five mixed precursor B-cell/myeloid acute leukaemias. The combination of the markers employed always allowed the identification of the cell lineage (myeloid, lymphoid or mixed) and, in some instances, of phenotypic profiles characteristic of distinct acute leukaemia subtypes. According to the results obtained, bone-marrow biopsy may be regarded as a reliable tool for acute leukaemia diagnosis; this observation is of practical relevance especially for the classification of cases which lack circulating blasts in the peripheral blood or showing dry tap at bone-marrow aspiration.

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