T-Cell Lymphomas
Less than 15% of the non-Hodgkin lymphomas are T-cell lymphomas that fall into numerous mostly rare subtypes. Precursor T-lymphoblastic lymphoma/leukemia is one the biggest subgroups of T-Cell non-Hodgkin lymphomas and it can also be considered a leukemia, depending on the extent of bone marrow affected. Another large group is peripheral T-cell lymphomas, which includes most of the subtypes.
