Chilblains, or pernio, is a localized inflammatory lesion of the skin resulting from an abnormal response to cold. It is characterized by persistent purple or purple-red nodules on acral skin, most commonly the feet. Chilblains occurs most commonly among young women between the ages of 15 and 30 years but may occur among older individuals or children. Treatment of chilblains is focused on keeping the affected area warm, and occasionally using vasodilator agents.
Category
Immune system disease; Skin disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
22 Injury, poisoning or certain other consequences of external causes
Other or unspecified effects of external causes
NF03 Other effects of reduced temperature
H01643 Chilblains
