Chest x-ray
Doctors use an X-ray to check for the swelling and increase in the size of lymph nodes.
Computerized Topography (CT) scan: CT scan of the body detects for the abnormalities of the neck, head, chest, pelvis, abdomen and swollen lymph nodes.
PET scan
This technique uses a radioactive material that is injected into the body of the patient before the scan to detect cancerous swollen lymph nodes.
Doctors use bone scans to check if the lymphoma has spread to the bones.