Lymphatic system cancers, also known as lymphomas, arise from the cells of the lymphatic system, which is part of the immune system. The two main types are Hodgkin lymphoma and non-Hodgkin lymphoma. These cancers can affect lymph nodes, spleen, and other organs, leading to symptoms like swollen lymph nodes, fever, and weight loss. Diagnosis typically involves blood tests, imaging studies, and a biopsy of affected tissue. Treatment options may include chemotherapy, radiation therapy, and targeted therapies, depending on the type and stage of the cancer. Early detection is crucial for improving outcomes.