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GTR Home > Conditions/Phenotypes > Becker nevus syndrome

Becker nevus syndrome

Synonyms
Unilateral hypoplasia of breast musculoskeletal defects

Summary

Becker nevus (BN) is a cutaneous hamartoma affecting approximately 1 in 200 individuals that appears in childhood as a unilateral tan patch, and increases in thickness, pigmentation, and hair growth during adolescence. Histologically, epidermal acanthosis is accompanied by irregularly dispersed ectopic smooth muscle bundles and increased terminal hair follicles (summary by Cai et al., 2017). Becker nevus syndrome (BNS) is a phenotype characterized by the presence of a Becker nevus in association with unilateral hypoplasia of breast or other cutaneous, muscular, or skeletal defects (Happle and Koopman, 1997). [from OMIM]

Available tests

3 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Clinical tests (3 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: BKRNS, BNS, BRWS1, CSMH, DDS1, PS1TP5BP1, THC8, ACTB
    Summary: actin beta

Clinical features

Help
Imported from Human Phenotype Ontology (HPO)

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