Lymphomas generally cause tumors to develop somewhere within the lymphatic
system. Sometimes these tumors can be felt or seen under the skin. Tumors
can also occur deep within the body, sometimes inside an organ (usually
either the gut, the bone marrow, the brain, or the liver). A number of
symptoms are possible. These include an enlarged spleen, liver obstruction,
rectal pain, irregular heartbeat, digestive problems, and internal bleeding.
Very often, lymphoma causes fever, unexplained weight loss, and night
sweats.
Lymphoma of the brain – called primary central nervous system (CNS)
lymphoma – may cause any number of symptoms. These include problems
focusing, paralysis affecting one side of the body, loss of ability to
speak or understand language, confusion, sudden memory loss, and mania.
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