Final answer:
Lymphoma does not account for a percentage of breast cancer cases as it originates from lymphocytes, not breast tissue. It is, however, a common type of blood cancer, with successful treatment options available, such as a 70% cure rate for DLBCL with prompt treatment.
Step-by-step explanation:
Lymphoma, specifically accounting for non-Hodgkin lymphoma (NHL) and Hodgkin lymphoma (HL), is a type of cancer that originates in the lymphocytes, which are cells of the immune system. Although lymphoma is the most common type of blood cancer, breast cancer is not derived from lymphocytes but from the breast tissue. Therefore, lymphoma itself does not account for a percentage of breast cancer cases. However, cancers like breast cancer can metastasize to lymph nodes.
For individuals diagnosed with different lymphomas such as NHL, which has over 60 subtypes, or the more rare HL, treatments are available. With the advancement in medical research and treatments, a significant percentage of lymphoma patients can achieve remission. In the case of Diffuse Large B-cell Lymphoma (DLBCL), an aggressive lymphoma, early detection and proper treatment can lead to a cure rate of about 70%.