Positron emission tomography (PET) scans are frequently utilized in the evaluation of lymphoma, a type of cancer affecting the lymphatic system. These scans employ a small amount of radioactive material, which is absorbed by metabolically active cells, such as cancerous ones. The resulting images provide information about the location, size, and metabolic activity of lymphoma, aiding in staging, treatment planning, and monitoring response to therapy. For instance, a scan might reveal affected lymph nodes or the involvement of other organs.
This imaging technique offers significant advantages in lymphoma management. It can differentiate between active tumor tissue and scar tissue, helping clinicians assess the effectiveness of treatment. Historically, evaluating treatment response relied heavily on physical examinations and less precise imaging methods. The development and refinement of PET scanning has dramatically improved the ability to accurately stage the disease and monitor its progression or regression, leading to more personalized and effective treatment strategies. This information is crucial for determining the most appropriate course of action, whether it involves chemotherapy, radiation therapy, or other approaches.