Synonyms: Precursor T-cell acute lymphoblastic leukemia/lymphoma | Precursor T-cell acute lymphocytic leukemia | Precursor T-cell acute lymphocytic leukemia/lymphoma | T-ALL
A rare acute lymphoblastic leukemia characterized by a neoplasm of lymphoblasts committed to the T-cell lineage involving bone marrow and blood. A value of >25% bone marrow blasts may be used to define leukemia (as opposed to lymphoma) in cases with the presence of a mass lesion in addition to bone marrow involvement. Patients typically present with leukocytosis and frequently with a large mediastinal or other tissue mass. Lymphadenopathy and hepatosplenomegaly are common.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Precursor T-cell acute lymphoblastic leukemia?
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Advocacy Organizations
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Clinical Trials
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