Which imaging modalities are commonly used in lymphoma staging?

Which imaging modalities are commonly used in lymphoma staging?

• A. CT scans and PET scans
• B. X-ray only
• C. Ultrasound only
• D. MRI of the brain only

Answer: (A)

Imaging for lymphoma staging relies on both where the disease is and how metabolically active the lymphoma cells are. The combined use of CT scans and PET scans is the most informative approach. CT provides detailed anatomical maps of lymph nodes, chest, abdomen, and pelvis, showing size and involvement of nodal and extranodal sites. PET, especially when fused with CT as PET-CT, reveals areas of increased metabolic activity typical of active lymphoma, helping identify sites that may not be enlarged yet and distinguishing active disease from scar or inflammation. This combination gives a comprehensive picture of stage and helps guide treatment and assess response. Relying on X-ray alone misses deep and abdominal disease and lacks the detailed anatomy needed for staging. Ultrasound can evaluate superficial nodes and certain organs but does not provide a full-body, systemic view or metabolic information. An MRI of the brain is reserved for suspected central nervous system involvement or specific lymphoma situations, not routine staging. Therefore, CT with PET-CT stands as the standard for most lymphoma staging.

Imaging for lymphoma staging relies on both where the disease is and how metabolically active the lymphoma cells are. The combined use of CT scans and PET scans is the most informative approach. CT provides detailed anatomical maps of lymph nodes, chest, abdomen, and pelvis, showing size and involvement of nodal and extranodal sites. PET, especially when fused with CT as PET-CT, reveals areas of increased metabolic activity typical of active lymphoma, helping identify sites that may not be enlarged yet and distinguishing active disease from scar or inflammation. This combination gives a comprehensive picture of stage and helps guide treatment and assess response.

Relying on X-ray alone misses deep and abdominal disease and lacks the detailed anatomy needed for staging. Ultrasound can evaluate superficial nodes and certain organs but does not provide a full-body, systemic view or metabolic information. An MRI of the brain is reserved for suspected central nervous system involvement or specific lymphoma situations, not routine staging. Therefore, CT with PET-CT stands as the standard for most lymphoma staging.