Print mail. Or, if you'd like to print out a message you're composing, click the down arrow at the bottom right of the email window, and select Print. Sometimes you may find it handy to print something from your inbox, like concert tickets or directions to a restaurant.
The second type of classification is by type of white blood cell affected: 1  Lymphocytic leukemia. This type of leukemia affects the lymphoid cells (lymphocytes), which form lymphoid or lymphatic tissue. 2  Myelogenous (my-uh-LOHJ-uh-nus) leukemia. This type of leukemia affects the myeloid cells.
By Mayo Clinic Staff. Factors that may increase your risk of developing some types of leukemia include: 1  Previous cancer treatment. People who've had certain types of chemotherapy and radiation therapy for other cancers have an increased risk of developing certain types of leukemia.  Genetic disorders.