GTR Home > Conditions/Phenotypes > Familial cold autoinflammatory syndrome 3


Familial cold autoinflammatory syndrome-2 is an autosomal dominant immune disorder characterized by the development of cutaneous urticaria, erythema, and pruritus in response to cold exposure. Affected individuals have variable additional immunologic defects, including antibody deficiency, decreased numbers of B cells, defective B cells, increased susceptibility to infection, and increased risk of autoimmune disorders (summary by Ombrello et al., 2012). For a discussion of genetic heterogeneity of FCAS, see FCAS1 (120100). [from OMIM]

Available tests

20 tests are in the database for this condition.

Genes See tests for all associated and related genes

  • Also known as: APLAID, FCAS3, PLC-IV, PLC-gamma-2, PLCG2
    Summary: phospholipase C gamma 2

Clinical features


Show allHide all

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.

Support Center