Diagnosis

Tests and procedures used to diagnose cutaneous B-cell lymphoma include:

• Physical exam. Your doctor will carefully examine your skin and look for other signs that may give clues about your diagnosis, such as swollen lymph nodes.
• Skin biopsy. Your doctor will remove a small portion of the skin lesion to look for lymphoma cells.
• Blood tests. A sample of your blood may be analyzed to look for lymphoma cells.
• Bone marrow biopsy. A sample of your bone marrow may be tested to look for lymphoma cells.
• Imaging tests. Imaging tests, such as computerized tomography (CT) scan and positron emission tomography (PET) scan, may help your doctor assess your condition.