Some types of cancer such as lung cancer can spread to lymph tissue like the lymph nodes or bone marrow. But cancers that begin in these places and afterward extend to the lymph tissue are not lymphomas.
There are 2 major kinds of lymphomas: Hodgkin lymphoma (also known as Hodgkin disease) and non-Hodgkin lymphoma
Both type of lymphoma are cancers that originate in a type of white blood cell identified as a lymphocyte, and significant component of the body's immune system. Both of these malignancies might lead to similar symptoms, but the conditions themselves are dissimilar. The difference between them is made upon assessment of the cancerous material (from a biopsy or aspiration of the tumor tissue). The kind of abnormal cells known in the sample settles on whether a lymphoma is categorized as Hodgkin's disease or non-Hodgkin's lymphoma.
Hodgkin's disease is much less common than non-Hodgkin's lymphoma and accounts for simply roughly 1% of all cancers in the U.S. The occurrence of this cancer has really been declining in latest years, in contradiction of the increases in non-Hodgkin's lymphoma. The diagnosis of Hodgkin's disease is established by visualizing tissue samples making use of a microscope.
Non-Hodgkin lymphoma also known as just lymphoma is a cancer that begins in cells called lymphocytes, which are component of the body's immune system. Lymphocytes are in the lymph nodes and other lymphoid tissues like the spleen and bone marrow.
However, as mentioned above, lung cancers that begin in these places and subsequently extend to the lymph tissue is not lymphomas.
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