Lymphoma is a cancer that arises from the cells of the lymphatic system. In the brain, this type of cancer is called Primary CNS Lymphoma (PCNSL).

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This disease affects people with healthy immune systems. It also can affect those whose immune systems are not functioning properly, such as organ transplant recipients, patients with autoimmune disease, or people who are HIV positive. The incidence of CNS lymphoma has been increasing over the past 20 years; it now represents between 2% and 3% of all primary brain tumors.

Brain Scans

Where is Primary CNS Lymphoma found?

Lymphoma occurs most often in the cerebral hemisphere, but may also involve the cerebrospinal fluid, the eyes, or the spinal cord. In addition, some people may have evidence of lymphoma elsewhere in the body. It is not unusual for this tumor to be found in multiple areas of the cerebral hemisphere, as it can spread throughout the central nervous system.

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