National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Erythromelalgia is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Erythromelalgia is a rare condition that primarily affects the feet and, less commonly, the hands (extremities). It is characterized by intense, burning pain of affected extremities, severe redness (erythema), and increased skin temperature that may be episodic or almost continuous in nature. (The prefix "erythro-" denotes redness, "mel-" is a combining form meaning limb or limbs, and the suffix "-algia" indicates pain.) Although erythromelalgia typically affects both sides of the body (bilateral), it may sometimes involve only one side (unilateral). In addition, the disease course may be extremely variable from case to case. For example, in some individuals, symptom onset may be gradual (insidious), with the condition potentially remaining relatively mild for years. However, in others, it may have a sudden (acute) onset, possibly spreading and becoming severe over weeks.
The specific underlying cause of erythromelalgia remains unknown. However, the condition is thought to result from vasomotor abnormalities or dysfunction in the normal narrowing (constriction) and widening (dilation) of the diameter (caliber) of certain blood vessels, leading to abnormalities of blood flow to the extremities. Erythromelalgia may be an isolated, primary condition or occur secondary to various underlying disorders. Primary erythromelalgia may appear to occur randomly for unknown reasons (sporadically) or may be familial, suggesting autosomal dominant inheritance.
NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases
One AMS Circle
Bethesda, MD 20892-3675
200 Old Castle Lane
Wallingford, PA 19086
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.
It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report
This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.
For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email email@example.com
Last Updated: 1/19/2012
Copyright 1986, 1987, 1988, 1989, 1995, 2001, 2002, 2003, 2009, 2012 National Organization for Rare Disorders, Inc.