Between January 2020 and May 2020 I conducted a study aimed at identifying 4 subtypes of non-Hodgkin lymphoma (hairy cell leukemia, Burkitt lymphoma, T-cell large granular lymphocytic leukemia, T-cell prolymphocytic leukemia). The sample was sampled by 111 people, women and men between the ages of 5 and 81. Interpretations were made by sex, by age group, by type of leukemia, on the chronic or acute side; and in patients with HCL we have detailed the information on laboratory examinations for an overview