What will blood tests reveal about lymphomas?

Lymphomas are a group of cancers that affect the lymphatic system, which is a network of vessels, nodes, and tissues that helps the body fight infection. Blood tests can provide important information about lymphomas, including:

* Complete blood count (CBC): A CBC measures the levels of different types of blood cells, including red blood cells, white blood cells, and platelets. In people with lymphoma, the CBC may show a decrease in red blood cells (anemia), an increase in white blood cells (leukocytosis), or a decrease in platelets (thrombocytopenia).

* Serum protein electrophoresis (SPEP): This test measures the levels of different types of proteins in the blood. In people with lymphoma, the SPEP may show an increase in the levels of a protein called immunoglobin, which is produced by B cells.

* Lactate dehydrogenase (LDH): LDH is an enzyme that is found in many different types of cells. When cells are damaged, LDH is released into the blood. In people with lymphoma, the LDH level may be elevated.

* C-reactive protein (CRP): CRP is a protein that is produced by the liver in response to inflammation. In people with lymphoma, the CRP level may be elevated.

These blood tests can help doctors diagnose lymphomas, monitor the progression of the disease, and assess the response to treatment.