Malignancy
Most Common (U.S)
Most Deadly (U.S)
Lung (154k/year)
Colorectal (50k/year)
Pancreatic (44k/year)
Breast (40k/year)
Hepatobiliary (30k/year)
Additional Considerations
Multiple Myeloma
Symptoms: Bone pain, fatigue, unintentional weight loss, paresthesias
Signs: Hepatosplenomegaly
Laboratory
Common findings: Anemia, elevated creatinine, elevated serum protein, hypercalcemia
Obtain serum protein electrophoresis/immunofixation electrophoresis (84165/86334), serum free light chain assay
Imaging: PET scan to locate focal disease
Diagnosis requires clonal bone marrow plasma cells ≥ 10% OR or extramedullary plasmacytoma on biopsy + one of the following
Hemoglobin < 10 mg/dL
Cr/Cl < 40 mL/min
Serum calcium > 11 mg/dL
Clonal bone marrow plasma cell percentage ≥ 60%
Involved:uninvolved serum free light chain ≥ 100
Osteolytic lesions on one of the following modalities: Skeletal radiography, CT, PET-CT, MRI
Treatment: Refer to hematology/oncology for chemotherapy +/- hematopoietic cell transplantation