CD45+CD19+ cells account for approximately 50.29% of nucleated cells cannot be determined to be severe. Because only a single indicator can not be judged and assessed the disease. CD45 itself is a common antigen of leukocytes, and its positivity belongs to a kind of expression in immunohistochemistry, which suggests that the origin of tumor cells is related to lymphatic tissues, which is a manifestation of the patient’s immunocompromise. CD19 is a CD expressed by B-cells, and its positivity mostly points to tumors of B-cell lineage. Positive CD19 is a CD expressed by B cells, and its positivity mostly points to tumors of the B-cell line. However, to further confirm the diagnosis, not only need to combine with other related tests, but also need to consider the specific clinical symptoms, and make a diagnosis after comprehensive consideration. In this case, it is recommended to go to a regular hospital and consult a doctor to solve the problem.