Close menu

Erythema


Source: http://en.wikipedia.org/wiki/Erythema
Updated: 2017-07-06T22:47Z
Erythema
Erythema migrans - erythematous rash in Lyme disease - PHIL 9875.jpg
Characteristic "bull's eye" rash (erythema migrans) of early Lyme disease
Classification and external resources
SpecialtyDermatology
ICD-10L51-L54
ICD-9-CM695
ICD-Ol
DiseasesDB4466
Patient UKErythema
MeSHD004890
[[[d:Lua error in Module:Wikidata at line 288: invalid escape sequence near '"^'.|edit on Wikidata]]]

Erythema (from the Greek erythros, meaning red) is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries.[1] It occurs with any skin injury, infection, or inflammation. Examples of erythema not associated with pathology include nervous blushes.[2]

Causes

It can be caused by infection, massage, electrical treatment, acne medication, allergies, exercise, solar radiation (sunburn), cutaneous radiation syndrome, mercury toxicity, blister agents,[3] niacin administration,[4] or waxing and tweezing of the hairs—any of which can cause the capillaries to dilate, resulting in redness. Erythema is a common side effect of radiotherapy treatment due to patient exposure to ionizing radiation.

Diagnosis

Erythema disappears on finger pressure (blanching), while purpura or bleeding in the skin and pigmentation do not. There is no temperature elevation, unless it is associated with the dilation of arteries in the deeper layer of the skin.[citation needed]

Types

See also

References

  1. ^ Mosby's Medical Dictionary (9th ed.). St. Louis, Missouri: Elsevier. 2013. ISBN 978-0-323-08541-0. 
  2. ^ erythema, Mosby's Medical, Nursing & Allied Health Dictionary, Fourth Edition, Mosby-Year Book 1994, p. 570
  3. ^ https://fas.org/nuke/guide/usa/doctrine/army/mmcch/Vesicant.htm#CLINICAL EFFECTS
  4. ^ Weterle R, Rybakowski J (Mar–Apr 1990). "Test niacynowy w schizofrenii" [The niacin test in schizophrenia]. Psychiatr Pol. 24 (2): 116–20. PMID 2084715. 

External links

Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.

Also On Wow

    Advertisement

    Trending Now