title: Dermoscopy of accessory nipples in authors' own study.
abstract: BACKGROUND
  The accessory nipple (AN) is characterised by its network-like structures, which may suggest the diagnosis of a melanocytic lesion. The knowledge about additional dermoscopic features of AN may greatly minimise the risk of unnecessary surgical excisions.
  
  
  OBJECTIVE
  To analyse and present different clinical and dermoscopic forms, in which the AN may appear.
  
  
  METHODS
  Ninety AN with dermoscopic features were evaluated in the study, detected in 14 patients between the years 2008 and 2014.
  
  
  RESULTS
  The most common dermoscopic features of the AN were central, scar-like areas (15/19) and peripheral network-like structures (12/19). A number of cleft-like appearances (8/19) and central network-like structures (7/19) had also been observed. Moreover, among the dermoscopic features, white cobblestone-like structures (7/19), a central round dimpling with a plug (6/19) and fisheye-like structures resembling comedo-like openings (9/19) have all also been noted. There is a statistical significance in the occurrence of white cobblestone-like structures with central network-like structures (Fisher's exact test p = 0.0449). The presence of peripheral network-like structures with the occurrence of central scar-like areas was statistically highly significant (p = 0.0091). The central round dimpling was never observed alongside any central network-like structures in any of the lesions (p = 0.0436).
  
  
  CONCLUSIONS
  Accessory nipples are most commonly characterised by the occurrence of a peripheral network-like structure accompanied by the presence of a scar-like area.
authors.affiliation: Center for Diagnostics and Treatment of Skin Diseases, Katowice, Poland. Head of Center: Grażyna Kamińska-Winciorek MD, PhD.
authors.forename: Grażyna
authors.initials: G
authors.lastname: Kamińska-Winciorek
authors.affiliation: Department of Mathematics and Informatics, Higher School of Labour Safety Management, Katowice, Poland. Head of Department: Prof. Bohdan Mochnacki PhD.
authors.forename: Jan
authors.initials: J
authors.lastname: Szymszal
authors.affiliation: Great Poland Center of Allergology and Aesthetic Dermatology "Art Clinic", Poznan, Poland. Head of Center: Prof. Wojciech Silny MD, PhD.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Silny
keywords: accessory nipple; dermatoscopy; dermoscopy
references.citation: Dermatol Online J. 2013 Jan 15;19(1):4
references.pmid: 23374946
references.citation: Ann Intern Med. 1981 Aug;95(2):182-4
references.pmid: 7258866
references.citation: Dermatol Surg. 2006 Nov;32(11):1398-406
references.pmid: 17083595
references.citation: Arch Dermatol. 2003 Jul;139(7):948-9
references.pmid: 12873905
references.citation: J Am Acad Dermatol. 2007 Sep;57(3):401-6
references.pmid: 17560684
references.citation: Arch Dermatol. 2008 Jan;144(1):75-83
references.pmid: 18209171
references.citation: Dermatol Pract Concept. 2012 Apr 30;2(2):202a08
references.pmid: 23785596
references.citation: Semin Cutan Med Surg. 2009 Sep;28(3):149-56
references.pmid: 19782938
references.citation: Dermatol Surg. 2004 Jul;30(7):1068-9
references.pmid: 15209804
references.citation: Contemp Oncol (Pozn). 2013;17(4):337-42
references.pmid: 24592119
references.citation: J Coll Physicians Surg Pak. 2006 Dec;16(12):799-800
references.pmid: 17125645
references.citation: Eur J Dermatol. 2001 May-Jun;11(3):270-6; quiz 277
references.pmid: 11358742
references.citation: Postepy Dermatol Alergol. 2013 Oct;30(5):316-9
references.pmid: 24353493
references.citation: Dermatol Clin. 2001 Apr;19(2):347-57
references.pmid: 11556243
references.citation: BMJ Case Rep. 2011 Jul 28;2011:
references.pmid: 22689851
references.citation: Int J Dermatol. 2007 Oct;46(10):1067-8
references.pmid: 17910716
references.citation: J Am Acad Dermatol. 2003 May;48(5):679-93
references.pmid: 12734496
references.citation: J Cutan Pathol. 1994 Jun;21(3):283-6
references.pmid: 7962832
references.citation: Indian J Hum Genet. 2012 Sep;18(3):373-5
references.pmid: 23716953
references.citation: Br J Dermatol. 2008 Aug;159(2):360-3
references.pmid: 18565183
references.citation: Postepy Dermatol Alergol. 2013 Aug;30(4):252-4
references.pmid: 24278083