U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Armfield syndrome

Summary

MRXSA is an X-linked recessive neurodevelopmental disorder characterized by global developmental delay with impaired intellectual development, usually accompanied by walking difficulties and poor or absent speech. Affected individuals have dysmorphic features, including large head circumference, downslanting palpebral fissures, bulbous nose, high-arched palate, short stature, and small hands and feet. Ocular anomalies, including strabismus, exotropia, myopia, and keratoconus, are common. Some patients may develop seizures. Additional variable features, such as mild congenital heart defects, joint stiffness, renal anomalies, and hemangiomas, may also be present (summary by Lee et al., 2020). [from OMIM]

Available tests

1 test is 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: 9F, DXS9928E, HXC-26, HXC26, MRXSA, XAP5, FAM50A
    Summary: family with sequence similarity 50 member A

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.