Myeloma PET Scan: When and How It's Used in Multiple Myeloma

Multiple myeloma is a cancer of plasma cells that affects bones and bone marrow throughout the body. Imaging plays a central role in diagnosis, response assessment, and surveillance. PET-CT has become one of the most important imaging tools for myeloma because it can detect both bone lesions and metabolically active disease that whole body MRI or skeletal survey may miss. This guide explains when a myeloma PET scan is ordered and what patients should expect.

What a Myeloma PET Scan Means

A myeloma PET scan uses fluorodeoxyglucose, the same radiotracer used for most oncology PET imaging. Myeloma cells consume glucose at higher rates than normal marrow, so they appear as bright focal lesions on PET images. The CT portion of the scan reveals the underlying bone, showing whether a lesion is lytic, sclerotic, or has caused a fracture.

Two features make PET particularly valuable in myeloma. First, it can detect extramedullary disease, meaning myeloma deposits outside the bones in organs such as the liver or soft tissues. Second, it gives a functional readout of how active the disease is, which is essential for measuring response to treatment. A bone lesion that looks unchanged on CT can become metabolically silent after effective therapy, and PET will show this clearly.

How the Scan Is Performed

Patients fast for at least six hours before the scan. Blood glucose is checked on arrival. After an intravenous injection of FDG, the patient rests quietly for about 60 minutes to allow the tracer to distribute. The scan itself takes 25 to 40 minutes.

For myeloma, the scan range typically extends from the skull through the feet, since lesions can occur anywhere in the skeleton. This is broader than the standard skull base to mid thigh protocol used for most other cancers. Patients should mention the indication clearly to ensure the correct protocol is used.

No sedation is required. Patients may resume normal activities immediately, with advice to drink water and avoid prolonged close contact with pregnant women and infants for the rest of the day.

Clinical Indications

Myeloma PET scans are ordered at several points in the disease course:

• Initial staging at the time of diagnosis to map all lesions
• Detection of extramedullary disease, which carries a worse prognosis and may change treatment
• Response assessment after induction chemotherapy, particularly before stem cell transplant
• Confirmation of complete response or minimal residual disease imaging endpoint
• Investigation of new bone pain or rising paraprotein levels
• Surveillance in patients with smoldering myeloma to detect early progression

The International Myeloma Working Group recognizes PET-CT as a preferred imaging modality alongside whole body MRI for many of these scenarios.

Cost in US, UK, China

Self-pay costs for a myeloma PET-CT include the broader skeletal coverage:

• United States cash price: $4,000 to $7,000
• United Kingdom private: GBP 1,800 to 2,800
• Mainland China top hospitals: RMB 7,000 to 10,000, roughly $1,000 to $1,430
• Hong Kong private: HKD 14,000 to 20,000
• Singapore: SGD 2,800 to 5,000
• Thailand: THB 35,000 to 65,000

The Chinese price reflects newer Siemens Biograph Vision or GE Discovery MI digital systems at top hospitals, with image quality matching or exceeding many Western centers.

Quality Markers for PET Centers

For myeloma specifically, a high quality PET center should offer:

• Digital silicon photomultiplier detector PET-CT, which has superior small lesion sensitivity
• Whole body skull to feet protocol on request
• Sub minute per bed position acquisition for shorter scan times
• Joint review by nuclear medicine, radiology, and hematology
• Comparison with prior scans for response assessment
• English-language reports for international patients

Centers with established myeloma programs typically score well on all of these.

Choosing the Right Hospital

Top Chinese centers for myeloma care that combine PET-CT with hematology expertise include the Hematology Hospital of Chinese Academy of Medical Sciences in Tianjin, Peking Union Medical College Hospital, Ruijin Hospital in Shanghai, and the First Affiliated Hospital of Soochow University. Each has a high volume myeloma practice and modern PET-CT.

For international patients, the value of a coordinated workup is real. PET-CT is one piece of a broader assessment that also includes bone marrow biopsy, cytogenetics, FISH testing, serum protein electrophoresis, free light chain assay, and a careful clinical history. A coordinator who can sequence appointments efficiently and translate reports saves substantial time compared to assembling each piece independently.

Frequently Asked Questions

Is PET-CT better than whole body MRI for myeloma?
The two tests are complementary. PET shows metabolic activity and helps with response assessment. Whole body MRI is more sensitive for diffuse marrow infiltration without focal lesions. Many centers use both at diagnosis and choose one for follow up depending on the dominant pattern.

How often will I need a PET scan?
Frequency depends on disease stage and treatment. Common timing is at diagnosis, after induction therapy, after stem cell transplant, and at any point where clinical or laboratory findings suggest progression. Routine surveillance scans in stable patients are typically not recommended due to radiation exposure.

Will a PET scan show how my treatment is working?
Yes. A reduction in the number and intensity of FDG avid lesions correlates with response. A scan that shows no remaining metabolically active disease is one of the criteria for imaging-defined complete response.

Can I get a myeloma PET scan in China as a self-pay foreign patient?
Yes. Top centers regularly scan international patients and accept self-pay in foreign currency. With pre-arrival document review, the scan can usually be booked within a few days of arrival.

Need Help Booking?

SinoCareLink can pre-book your myeloma PET scan at a top Chinese cancer center, translate reports into English, and arrange airport pickup. Contact us for a free consultation.