U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > T-cell immunodeficiency, congenital alopecia, and nail dystrophy

Summary

T-cell immunodeficiency, congenital alopecia, and nail dystrophy (TIDAND) is an autosomal recessive primary immunodeficiency characterized by congenital thymic aplasia and severe T-cell immunodeficiency apparent at birth or soon thereafter. Affected individuals tend to have recurrent infections, oral candidiasis, and failure to thrive. Immunologic investigations show decreased numbers of T cells with poor proliferative response to phytohemagglutinin (PHA) and variable hypogammaglobulinemia. The phenotype is consistent with a T-/B+/NK+ form of severe combined immunodeficiency (SCID; see, e.g., 102700). Patients with FOXN1 mutations do not respond well to hematopoietic stem cell transplantation, as it is not curative; thymic transplantation offers a potential cure (Chou et al., 2014). [from OMIM]

Available tests

23 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Genes See tests for all associated and related genes

  • Also known as: FKHL20, RONU, TIDAND, TLIND, WHN, FOXN1
    Summary: forkhead box N1

Clinical features

Help

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.