- acute biphenotypic leukemia [DOID:9953]
An acute leukemia that is characterized by the occurrence of more than one type of leukemia at the same time resulting from either the occurrence of blasts which coexpress myeloid and T or B lineage antigens or concurrent B and T lineage antigens.
- lymphoid leukemia [DOID:1037]
A leukemia that has_material_basis_in a B-cell or T-cell lineage involving primarily the bone marrow and the peripheral blood.
- lymphoblastic lymphoma [DOID:0080147]
A lymphoma that has_material_basis_in immature malignant lymphocytes (lymphoblasts) committed to the B-cell or T-cell lineage and located_in primarily lymph nodes or located_in extranodal sites.
- lambda 5 deficiency [DOID:0060024]
A B cell deficiency that has_material_basis_in mutations in the IGLL1 gene. Lambda 5 mutations can cause a block in B cell development at the transition between the pro-B cell and the pre-B cell stage.