Tests and diagnosis
By Mayo Clinic staffIn order to pinpoint the underlying cause of osteomalacia and to rule out other bone disorders, such as osteoporosis, you may undergo one or more of the following tests:
- Blood and urine tests. In cases of osteomalacia caused by vitamin D deficiency or by phosphorus loss, abnormal levels of vitamin D and the minerals calcium and phosphorus are often detected.
- X-ray. Slight cracks in your bones that are visible on X-rays, referred to as Looser transformation zones, are a characteristic feature of people with osteomalacia.
- Bone biopsy. During a bone biopsy, your doctor inserts a slender needle through your skin and into your bone to withdraw a small sample for viewing under a microscope. Although a bone biopsy is very accurate in detecting osteomalacia, it's not often needed to make the diagnosis.
References
- Bhan A, et al. Osteomalacia as a result of vitamin D deficiency. Endocrinology Metabolism Clinics of North America. 2010;39:321.
- Rickets. In: Ferri FF. Ferri's Clinical Advisor 2011: Instant Diagnosis and Treatment. Philadelphia, Pa.: Mosby Elsevier; 2011.http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-05610-6..C2009-0-38600-6--TOP&isbn=978-0-323-05610-6&about=true&uniqId=230100505-53. Accessed April 1, 2011.
- Rickets and osteomalacia. In: Kronenberg HM, et al. Williams Textbook of Endocrinology. 11th ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/191205553-3/0/1555/0.html#. Accessed April 1, 2011.
- Menkes CJ. Diagnosis and treatment of osteomalacia. http://www.uptodate.com/home/index.html. Accessed April 1, 2011.
- Rickets and hypervitaminosis D. In: Kliegman RM. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/208746819-6/0/1608/0.html. NGC. http://www.guideline.gov/content.aspx?id=13540. Accessed April 1, 2011.
- Binkley N, et al. Low vitamin D status: Definition, prevalence, consequences, and correction. Endocrinology Metabolism Clinics of North America. 2010;39:287.
- Menkes CJ. Clinical manifestations and etiology of osteomalacia. http://www.uptodate.com/home/index.html. Accessed April 1, 2011.
- Chang-Miller A (expert opinion). Mayo Clinic, Rochester, Minn. April 4, 2011.

Find Mayo Clinic on