Precursor lymphoid neoplasms

Definition

Neoplasms of immature malignant lymphocytes (lymphoblasts) committed to the B-cell or T-cell lineage. Neoplasms involving the bone marrow and the peripheral blood are called precursor lymphoblastic leukaemias or acute lymphoblastic leukaemias. Neoplasms involving primarily lymph nodes or extranodal sites are called lymphoblastic lymphomas.

3 subordinate codes

• 2A70Precursor B-lymphoblastic neoplasms
• 2A71Precursor T-lymphoblastic neoplasms
• 4B4ZDiseases of the immune system, unspecified

Nearby in Neoplasms of haematopoietic or lymphoid tissues

• 2A20-2A2ZMyeloproliferative neoplasms
• 2A30-2A3ZMyelodysplastic syndromes
• 2A40-2A4ZMyelodysplastic and myeloproliferative neoplasms
• 2A50-2A5ZMyeloid or lymphoid neoplasms with eosinophilia and abnormalities of PDGFRA, PDGFRB or FGFR1
• 2A60Acute myeloid leukaemias and related precursor neoplasms
• 2A61Acute leukaemias of ambiguous lineage
• 2A80-2A8ZMature B-cell neoplasms
• 2A90-2B2ZMature T-cell or NK-cell neoplasms