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Syndrome reference sheet
Generated 12 Oct 2026
Immunology · Immunology / Autoinflammatory disorders

Familial cold autoinflammatory syndrome

Also known as: FCAS

Cold-induced urticaria and fever.

Medical specialty
Immunology
Subspecialty
Immunology / Autoinflammatory disorders
Sex & age distribution
Male: affected; Female: affected; Children: yes
Gene(s) involved
NLRP12, NLRP3

Etiology & mechanism

NLRP3 or NLRP12 mutation.

Gene(s) involved (2)

NLRP12NLRP3

Symptoms & signs (4)

arthralgiacold-induced rashconjunctivitisfever
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.