U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Distal arthrogryposis type 2B1

Distal arthrogryposis type 2B1

Synonyms
Arthrogryposis multiplex congenita distal type II with craniofacial abnormalities; TNNI2-Related Arthrogryposis Multiplex Congenita, Distal, Type 2B

Summary

Distal arthrogryposis is a clinically and genetically heterogeneous disorder characterized by clenched fist, overlapping fingers, camptodactyly, ulnar deviation, and positional foot deformities from birth. It is a disorder of primary limb malformation without primary neurologic or muscle disease. DA1 is not associated with other abnormalities, whereas other forms of DA have additional phenotypic features (Bamshad et al., 1996). The congenital contractures in DA2B (Sheldon-Hall syndrome, SHS) are similar to those observed in DA1, but affected individuals tend to have more prominent nasolabial folds, downslanting palpebral fissures, and a small mouth. DA2B is thought to be the most common of the distal arthrogryposis disorders (summary by Bamshad et al., 2009). For a general phenotypic description and a discussion of genetic heterogeneity of distal arthrogryposis, see DA1 (108120). [from OMIM]

Available tests

55 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Clinical tests (55 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: AMCD2B, DA2B, DA2B1, FSSV, fsTnI, TNNI2
    Summary: troponin I2, fast skeletal type

Clinical features

Help
Imported from Human Phenotype Ontology (HPO)

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.