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Becker nevus syndrome
Other Names for this Disease
- Hairy epidermal nevus syndrome
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Becker nevus syndrome is characterized by the presence of a Becker nevus in association with underdevelopment (hypoplasia) of the breast and/or other skin-related (cutaneous), muscular, or skeletal defects, all of which usually involve the same side of the body as the nevus (ipsilateral). Breast hypoplasia affects both males and females, but is more noticeable in females. Other muscular and skeletal abnormalities may include absence of the pectoralis major muscle (pectoral); underdevelopment of the muscles of the shoulder girdle; abnormal curvature of the spine (scoliosis); vertebral defects; fused ribs; ipsilateral shortness of a limb; underdevelopment of the teeth and jaws; a "sunken chest" (pectus excavatum) or abnormally prominent chest (pectus carinatum); and other findings. Extra (supernumerary) nipples and abnormally sparse hair under the armpit on the affected side of the body have also been reported in some affected individuals.
Last updated: 4/23/2012
- Wilson H. Y. Lo. Becker Nevus Syndrome. OMIM. May 4, 2000; http://omim.org/entry/604919. Accessed 4/23/2012.
- Epidermal Nevus Syndromes. NORD. June 20, 2011; http://www.rarediseases.org/rare-disease-information/rare-diseases/byID/862/viewAbstract. Accessed 4/23/2012.