Multiple Myeloma Comprehensive Panel – Key Tests & Markers

This panel helps diagnose, monitor, and assess the prognosis of Multiple Myeloma (MM) by detecting abnormal plasma cell activity, monoclonal proteins, and disease progression markers.

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🧪 Blood & Urine Tests for Multiple Myeloma

1️⃣ Serum Protein Electrophoresis (SPEP) & Immunofixation

✔ Purpose: Detects and identifies monoclonal (M) proteins produced by myeloma cells.
✔ Findings:

• M-spike (Monoclonal Protein Band): Sign of clonal plasma cell proliferation.

• Polyclonal Gammopathy: Seen in infections, autoimmune diseases.

• Hypogammaglobulinemia: Low immune function, common in MM.

2️⃣ Immunoglobulin Quantification (IgA, IgG, IgM Levels)

✔ Purpose: Measures levels of major immunoglobulins.
✔ Findings:

• IgG or IgA Myeloma: Overproduction of a single type (most common forms).

• IgM: Usually normal or low in MM (high levels suggest Waldenström’s Macroglobulinemia).

3️⃣ Beta-2 Microglobulin (B2M)

✔ Purpose: Measures tumor burden and disease progression.
✔ Findings:

• Higher levels: Indicate poor prognosis and advanced disease.

• Used in staging (Revised ISS system).

4️⃣ Free Kappa & Lambda Light Chain Assay

✔ Purpose: Detects light chain imbalance, crucial for Light Chain Myeloma.
✔ Findings:

• Elevated Free Kappa/Lambda Ratio: Sign of monoclonal plasma cell disorder.

• Light Chain (Bence Jones) Myeloma: Excess free light chains cause kidney damage.

5️⃣ Urine Protein Electrophoresis (UPEP) & Immunofixation

✔ Purpose: Detects Bence Jones Proteins (free light chains in urine).
✔ Findings:

• Present in Light Chain Myeloma, a more aggressive form.

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🔍 Additional Tests for Multiple Myeloma Diagnosis & Monitoring

🔹 Complete Blood Count (CBC): Checks for anemia, thrombocytopenia.
🔹 Calcium Levels: High calcium due to bone breakdown.
🔹 Renal Function Tests (Creatinine, BUN): Evaluates kidney damage.
🔹 Lactate Dehydrogenase (LDH): Marker of aggressive disease.
🔹 Bone Marrow Biopsy: Confirms >10% abnormal plasma cells in marrow.
🔹 Whole-Body CT / MRI / PET-CT: Detects bone lesions, fractures, and tumor activity.

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Why This Panel is Important?

✔ Confirms Diagnosis – Differentiates MM from other plasma cell disorders.
✔ Assesses Tumor Burden & Prognosis – B2M, Light Chains help in staging.
✔ Monitors Treatment Response – Tracks changes in M-protein and light chain levels.
✔ Detects Kidney & Bone Damage Early – Prevents complications.