Pigmented hairy epidermal nevus syndrome, also known as Becker's naevus syndrome,[1] is a cutaneous condition characterized by a Becker nevus, ipsilateral hypoplasia of the breast, and skeletal defects such as scoliosis.[2]: 635 [3]: 776
Signs and symptoms
Pigmented hairy epidermal nevus syndrome is defined by the presence of a hypoplastic defect of the muscle, skin, or skeleton, or by ipsilateral breast hypoplasia associated with a Becker's nevus.[4]
The majority of the diagnosis is clinical, with a well-defined area of hyperpigmentation and hypoplasia of the ipsilateral breast, areola and/or nipple, limb, muscle, and adipose tissue. Histology results showing high androgen receptor levels in the hypoplastic muscles similar to those expressed in the genitalia further corroborate the diagnosis.[12]
^Van Gerwen, H. J.; Koopman, R. J.; Steijlen, P. M.; Happle, R. (1993). "Becker's naevus with localized lipoatrophy and ipsilateral breast hypoplasia". The British Journal of Dermatology. 129 (2): 213. ISSN0007-0963. PMID7654589.
^Jones, Anne Cale; Ford, Michael J (1999). "Simultaneous occurrence of segmental odontomaxillary dysplasia and decker's nevus". Journal of Oral and Maxillofacial Surgery. 57 (10). Elsevier BV: 1251–1254. doi:10.1016/s0278-2391(99)90498-6. ISSN0278-2391. PMID10513874.
^Jung, Jae Hoon; Kim, You Chan; Park, Hyang Joon; Cinn, Yong Woo (2003). "Becker's Nevus with Ipsilateral Breast Hypoplasia: Improvement with Spironolactone". The Journal of Dermatology. 30 (2). Wiley: 154–156. doi:10.1111/j.1346-8138.2003.tb00365.x. ISSN0385-2407.
^Urbani, C. E. (2001). "Paradominant inheritance, supernumerary nipples and Becker's nevus: once again!". European Journal of Dermatology: EJD. 11 (6): 597. ISSN1167-1122. PMID11701421.
Danarti, Retno; König, Arne; Salhi, Aïcha; Bittar, Mario; Happle, Rudolf (2004). "Becker's nevus syndrome revisited". Journal of the American Academy of Dermatology. 51 (6): 965–969. doi:10.1016/j.jaad.2004.06.036. PMID15583590.
Torchia, Daniele (2021). "Becker nevus syndrome: A 2020 update". Journal of the American Academy of Dermatology. 85 (2): e101 –e103. doi:10.1016/j.jaad.2021.03.095. PMID33819536.