C82.45

Clinical Causes: Genetic mutations within B lymphocytes leading to abnormal cell growth Chromosomal translocations, such as t(14;18), resulting in overexpression of certain genes Age-related genetic changes, commonly affecting adults over 60 years Environmental factors including exposure to certain chemicals or radiation (though less clearly established)

Key Symptoms: Swollen lymph nodes, particularly in the groin, thighs, or lower limbs Persistent fatigue and weakness Unexplained weight loss Night sweats Fever not related to infections Itching over affected areas Lower limb swelling or discomfort caused by enlarged lymph nodes compressing surrounding tissues In advanced stages, possible invasion into adjacent tissues causing pain or skin changes

Diagnosis Path: Diagnosis of follicular lymphoma typically involves a combination of clinical examination, imaging, and laboratory tests. Initial assessment includes palpation of swollen lymph nodes, especially in the inguinal and lower limb regions. Imaging techniques such as ultrasound, CT scans, or PET scans help determine the extent of disease. A definitive diagnosis requires a biopsy of affected lymph nodes, which is examined microscopically to identify characteristic features of follicular lymphoma. Additional tests like immunohistochemistry and genetic studies help confirm the subtype and grade. Blood tests may also be performed to evaluate overall health and organ function.

Treatment Protocols: Chemotherapy: Combines drugs to eradicate malignant cells. Immunotherapy: Uses monoclonal antibodies such as rituximab to target B cells. Targeted therapy: Focuses on specific genetic or molecular characteristics of the lymphoma. Radiation therapy: Applied in localized disease to destroy affected tissues. Stem cell transplantation: May be considered in relapsed or refractory cases. Supportive care: Includes management of symptoms and side effects, along with infection prevention measures.