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Urushiol-induced contact dermatitis (also called Toxicodendron dermatitis or Rhus dermatitis) is a type of allergic contact dermatitis caused by the oil urushiol found in various plants, most notably sumac family species of the genus Toxicodendron: poison ivy, poison oak, poison sumac, and the Chinese lacquer tree. [1]
The differences in toxicity in poison ivy, poison oak, and poison sumac are due to differences in the side chains of the chemicals in these plants. In general, poison ivy has a C 15 side chain, poison oak has a C 17 side chain and poison sumac has a C 13 side chain. The dermatitis shows itself in painful and long continued swellings and ...
Toxicodendron radicans images at bioimages. vanderbilt.edu; Poison Ivy, Ontario Ministry of Agriculture, Food and Rural Affairs; Common weeds of the northern United States and Canada: Western poison oak, poison ivy and poison sumac. (Anacardiaceae-family) Large site with many photos, facts, products, rash images, and a quiz about poison ivy.
Poison ivy. What it looks like: Poison ivy is a type of allergic contact dermatitis that is caused by the oil (urushiol oil) in the poison ivy plant, explains Karan Lal, D.O., M.S., F.A.A.D ...
26 pictures of skin rashes to help you identify your skin rash. Plus, doctor-approved at-home skin rash remedies and when to see a doctor for your skin rash. ... Poison ivy is caused by skin ...
Contact with anything that touched the poison ivy, oak or sumac can cause a rash within 12 to 72 hours. These include pets, clothes, tools, shoes or a hiking backpack. These include pets, clothes ...
Toxicodendron vernix (L.) Kuntze (synonym Rhus vernix) – Poison sumac is a tall shrub or a small tree, from 2–7 m tall. It is found in swampy, open areas and reproduces by seeds. The leaves have between 7–13 untoothed leaflets, in a feather-compound arrangement. [10]
Both trigger a rash. Photos of contact dermatitis. ... Contact dermatitis is caused by something that touches your skin — like poison ivy, nickel, fragrances, latex or other irritants — and ...
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