Chilblain Lupus
Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
ICD11: EB51.Y
Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
ICD11: EB51.Y
Hutchinson 1888.
Frostbite lupus, chilblain lupus erythematosus.
Rare variant of cutaneous lupus erythematosus whose skin changes resemble frostbite (= chilblain).
The exact cause is unknown. There is at least a genetic component, as familial forms of "chilblain lupus" have been described
Livid pressure-dolenous, partly hyperkeratotic, sometimes hyperaesthetic, cushion-like swellings, plaques and nodules. There may be central atrophy, but also erosions or ulcers.
Cold exposed areas.
Orthohyperkeratosis, atrophy of the surface epithelium, perivascular lymphocellular infiltrates, intraluminal fibrin deposits.
Transition to an SLE.
Often chronic.