|
|
Osteitis Fibrosa
Alternate Names : Osteitis Fibrosa Cystica
Definition
Osteitis fibrosa is a complication of hyperparathyroidism (excess parathryroid hormone production) in which bone becomes softened, deformed and may develop cysts.
Pictures & Images
 See all Pictures & Images
Overview, Causes, & Risk Factors
There are four parathyroid glands in the neck. They produce parathyroid hormone, which helps control calcium levels in the body. Sometimes they produce too much parathyroid hormone (hyperparathyroidism). In these cases, one gland may develop a growth (80% of cases);or all 4 glands may enlarge (15% of cases). Rarely, parathyroid cancer may cause the condition.
Hyperparathyroidism is most common in women over 60. Genetic changes cause it, and it sometimes runs in families. Neck radiation increases the likelihood of developing this disorder. Parathyroid hormone increases bone "turnover" (metabolism) and may soften it.
Before 1950, about half of people diagnosed with hyperparathyroidism had osteitis fibrosa cystica. Now it is uncommon (less than 10% of people with hyperparathyroidism) because patients are diagnosed earlier and have milder elevations of calcium. People with severe hyperparathyroidism, or those who have parathyroid cancer, are more at risk for developing osteitis fibrosa cystica.
Today's Top News Stories | • | Early Elective C-Sections Produce Complications - Jan 07, 2009, 17:00
Babies delivered at 37 weeks have double the troubles of those born at 39 weeks.
| • | Gene Governs Response to Leukemia Chemotherapy - Jan 07, 2009, 17:00
Acute lymphoblastic leukemia is most common pediatric cancer. | • | Teen Birth Rate Up in 26 States in 2006 - Jan 07, 2009, 14:00
Highest rates in South, Southwest; lowest rates in Northeast, government reports. | • | Clinical Trials Update: Jan. 7, 2009 - Jan 07, 2009, 09:58
- Hypertension (High Blood Pressure)
- Attention Deficit/Hyperactivity Disorder (ADHD - Pediatric)
- Memory Loss
| • | Study of Everest Climbers Questions Oxygen Use - Jan 07, 2009, 17:00
Whether low levels would work for ER patients with hypoxia remains unclear. |
|
Jump to another section
• Definition
• Osteitis Fibrosa Overview, Causes, & Risk Factors
• Osteitis Fibrosa Symptoms & Signs
• Osteitis Fibrosa Prevention
• Osteitis Fibrosa Diagnosis & Tests
• Osteitis Fibrosa Treatment
• Osteitis Fibrosa Prognosis
• Osteitis Fibrosa Complications
• Calling Your Health Care Provider
• Pictures & Images
Review Date : 11/15/2002
Reviewed By : Todd T. Brown, M.D., Division of Endocrinology and Metabolism, Johns Hopkins Hospital, Baltimore, MD. Review provided by VeriMed Healthcare Network.
|
|
