Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]
Overview
Multiple myeloma must be differentiated from monoclonal gammopathy of undetermined significance (MGUS), isolated plasmacytoma of the bone, and extramedullary plasmacytoma.[1]
Differentiating Multiple Myeloma from other Diseases
- The table below summarizes how to differentiate multiple myeloma from other conditions that cause similar presentation:[1]
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Differential Diagnosis
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Causes
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Features
|
Therapy
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Multiple myeloma
|
- Chromosomal aberrations or other genetic insults
- Malignant transformation of plasma cells
- Clonal plasma cell proliferation
|
|
- Induction chemotherapy with bortezomib, lenalidomide, and dexamethasone
- Bisphosphonates
- RANK ligand inhibitors (denosumab)
- Autologous stem cell transplantation
|
Osteoporosis
|
- Imbalance between bone resorption and bone formation
- Preceded by osteopenia
- Decreased bone mineral density
|
- Acute musculoskletal pain if fracture develop
- Severe decrease in BMD on dual-energy X-ray absorptiometry (DEXA) test
- T score less than -2.5 on DEXA scan
|
- Calcium and vitamin D supplementation
- Bisphosphonates
- Weight-bearing exercise
- Teriparatide
- RANK ligand inhibitors (denosumab)
|
Osteomalacia
|
- Inadequate mineralization of bone
- Deficiencies in vitamin D, calcium, or phosphorus
- Renal tubular acidosis
- Malabsorption
|
|
- Vitamin D3 supplementation
|
Scurvy
|
- Vitamin C deficieny
- Malabsorption
- Hemodialysis
|
- Gum disease
- Loose teeth
- Easy bruising
|
- Vitamin C supplementation
- Citrus fruits
|
Osteogenesis imperfecta
|
- Mutations in 'COL1A1 or COL1A2
- Impaired type I collagen synthesis
|
|
- Bisphosphonates
- Physical therapy
- Surgical fixation of brittle bones
- Genetic counseling for offspring
|
Homocystinuria
|
- Deficiency of cystathione beta synthase
- Deficiency of folate, vitamin B12, or vitamin B6
|
|
- High-dose vitamin B6 supplementation
- Betaine supplementation
|
|
References
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