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PET and CT scans serve complementary purposes in lymphoma diagnosis. CT scans provide detailed cross-sectional images of organs, bones, and soft tissues, making them excellent for viewing anatomical structures in the abdomen, pelvis, chest, head, and neck areas.

PET scans, while less detailed anatomically, are particularly Show Full Answer

PET and CT scans serve complementary purposes in lymphoma diagnosis. CT scans provide detailed cross-sectional images of organs, bones, and soft tissues, making them excellent for viewing anatomical structures in the abdomen, pelvis, chest, head, and neck areas.

PET scans, while less detailed anatomically, are particularly effective at detecting cancer activity because they show areas of high glucose consumption, which is characteristic of cancer cells. This makes PET scans especially useful for:
- Determining if lymph nodes contain cancerous cells
- Monitoring tumor response to treatment
- Detecting small numbers of cancer cells in areas that may look normal on CT scans For optimal results, doctors often combine both technologies in a PET-CT scan. This combination provides both anatomical detail and metabolic activity information in a single examination. These scans may be repeated after two or three treatment cycles to assess treatment response and guide future treatment decisions.

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