Unilateral Nevoid Acanthosis Nigricans on the Back: A Case Report

  • Mohammad Ebrahimzadeh Ardakani Department of Dermatology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Narges Ghanei Department of Dermatology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
  • Mitra Shafihosseini Department of Dermatology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Keywords: Acanthosis Nigricans, Unilateral Nevoid Acanthosis Nigricans, Rare subtype, Nevoid Acanthosis

Abstract

Unilateral Nevoid Acanthosis Nigricans (UNAN) is a rare, benign, autosomal dominant form of Acanthosis Nigricans (AN), which is a disorder of keratinization. Unlike AN, the lesions of UNAN are distributed unilaterally while the histopathological findings are similar to the common form of AN. The first description of UNAN was given by Krishnaram in 1991, and following that report, very few cases have been reported. Herein, we present another case of UNAN localized over the back, in a young adult female.

Author Biographies

Mohammad Ebrahimzadeh Ardakani, Department of Dermatology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

Unilateral Nevoid Acanthosis Nigricans (UNAN) is a rare, benign, autosomal dominant form of Acanthosis Nigricans (AN), which is a disorder of keratinization. Unlike AN, the lesions of UNAN are distributed unilaterally while the histopathological findings are similar to the common form of AN. The first description of UNAN was given by Krishnaram in 1991, and following that report, very few cases have been reported. Herein, we present another case of UNAN localized over the back, in a young adult female.

Mitra Shafihosseini, Department of Dermatology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

Unilateral Nevoid Acanthosis Nigricans (UNAN) is a rare, benign, autosomal dominant form of Acanthosis Nigricans (AN), which is a disorder of keratinization. Unlike AN, the lesions of UNAN are distributed unilaterally while the histopathological findings are similar to the common form of AN. The first description of UNAN was given by Krishnaram in 1991, and following that report, very few cases have been reported. Herein, we present another case of UNAN localized over the back, in a young adult female.

References

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Published
2019-09-30
How to Cite
1.
Ebrahimzadeh Ardakani M, Ghanei N, Shafihosseini M. Unilateral Nevoid Acanthosis Nigricans on the Back: A Case Report. Acta Med Iran. 57(5):335-337.
Section
Case Report(s)