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Familial Chilblain lupus 2

Familial Chilblain lupus type 2 is an autosomal dominant disorder which is due to mutations of the SAMHD1 gene. Onset is in early childhood with symptoms redness, itching, inflammation, and sometimes blisters of toes and fingers. The symptoms use to exacerbate in cold and humid climate and show a remission in the sommer.

Epidemiology

The prevalence of all types of familial chilblain lupus is less than 1:1,000,000.

Laboratory tests

Laboratory findings include signs of inflammation and antinuclear autoantibodies.

Systematic

Familial Chilblain lupus
Familial Chilblain lupus 2
SAMHD1
Familial chilblain lupus 1

References:

1.

Ravenscroft JC et al. (2011) Autosomal dominant inheritance of a heterozygous mutation in SAMHD1 causing familial chilblain lupus.

external link
2.

Wikipedia article

Wikipedia EN (Chilblains) external link
Update: Aug. 14, 2020
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