C83.38

Clinical Causes: Genetic mutations impacting immune cells Chronic immune system suppression or diseases Infections such as Epstein-Barr virus or human immunodeficiency virus (HIV) Exposure to certain chemicals or radiation Once the lymphoma has been previously treated or has relapsed

Key Symptoms: Swollen lymph nodes often palpable in the neck, armpits, or groin Unexplained weight loss Persistent fatigue or weakness Fever that comes and goes without an apparent cause Night sweats, usually severe enough to require changing bedclothes Abdominal pain or swelling Difficulty breathing or chest pain if the lymphoma affects organs within the chest cavity Itching or skin rash in some cases

Diagnosis Path: To confirm a diagnosis of diffuse large B-cell lymphoma affecting multiple lymph node sites, healthcare providers typically perform a combination of tests, including: - Physical examination to identify swollen lymph nodes - Imaging studies such as CT scans or PET scans to assess the extent of the disease - Biopsy of an affected lymph node or tissue to examine cell type and appearance under a microscope - Laboratory tests to evaluate blood counts and organ function - Bone marrow biopsy in some cases to determine if the disease has spread The diagnostic process aims to distinguish DLBCL from other types of lymphomas and conditions with similar symptoms.

Treatment Protocols: Treatment strategies for diffuse large B-cell lymphoma involve a combination of therapies aimed at destroying cancer cells and controlling disease progression. Common approaches include: - Chemotherapy: Usually the primary treatment, commonly using a regimen called R-CHOP (rituximab with cyclophosphamide, doxorubicin, vincristine, and prednisone) - Targeted therapy: Use of specific drugs that attack lymphoma cells expressing particular proteins, such as rituximab - Radiation therapy: May be employed in localized disease or to relieve symptoms - Immunotherapy: Emerging treatments that help the immune system recognize and eradicate cancer cells - Stem cell transplantation: Considered in cases of relapse or refractory disease The choice of treatment depends on factors such as the extent of disease, patient’s age, overall health, and response to initial therapy. Ongoing monitoring and supportive care play vital roles in managing side effects and assessing treatment effectiveness.