Tell me about follicular lymphoma

According to the 2024 NCCN Guidelines for Patients with Follicular Lymphoma:

Key Characteristics:

• FL is a slow-growing (indolent) type of non-Hodgkin lymphoma (NHL)
• It develops from B lymphocytes, which are a type of white blood cell
• The disease is characterized by abnormal B lymphocytes forming clusters (follicles) in lymph nodes and sometimes other tissues

How It Develops:

• FL starts in the temporary germinal centers (GCs) of lymph nodes
• These germinal centers normally form in response to infection or inflammation
• In FL, the cells within these centers grow without proper regulation

Types and Grades: The NCCN Guidelines identify several types:

1. Classic FL (cFL) - Grades 1 or 2
2. Uncommon FL (uFL)
3. Pediatric-type FL (PTFL)
4. Transformed FL (can transform into more aggressive DLBCL)

Important Points to Know:

• Not everyone with FL needs immediate treatment
• While FL typically forms tumors in lymph nodes, it can appear in other parts of the body
• Almost all FL cases have a specific chromosome translocation (t(14:18)) or elevated levels of BCL2 protein

The Leukemia & Lymphoma Society and NCCN both emphasize that FL is typically manageable, though not usually curable. It's important to work with your healthcare team to determine the best treatment approach for your specific situation.

Always consult with your healthcare providers for personalized medical advice, as they can take into account your specific circumstances and medical history.

Sources:

• NCCN Guidelines for Patients: Follicular Lymphoma, 2024 Edition, Pages 5-9
• NCCN Guidelines for Patients: Follicular Lymphoma, 2024 Edition, Pages 9-11