Nevi

Last reviewed: 19 Apr 2022
Last updated: 14 Feb 2019

Summary

Definition

History and exam

Key diagnostic factors

  • presence since birth
  • asymmetric, indistinct or irregularly bordered, variably colored papules with diameter >5 mm
  • history of change in shape and color
  • asymptomatic (usually)
  • multiple lesions
  • flat, brown macule
  • dome-shaped papule
  • light brown background with speckled darker brown spots within
  • blue-gray dome-shaped papule
  • central pink-to-brown papule with a surrounding depigmented white ring
  • pinkish-brown papule
More key diagnostic factors

Risk factors

  • genetic predisposition
  • UV exposure
  • fair skin
  • age: older children and young adults
More risk factors

Diagnostic investigations

1st investigations to order

  • dermatoscopy
More 1st investigations to order

Investigations to consider

  • non-invasive imaging technologies
  • total body photography
  • biopsy
More investigations to consider

Treatment algorithm

ACUTE

clinically benign

clinically suspicious for melanoma

Contributors

Authors

Jason B. Lee, MD
Jason B. Lee

Professor of Dermatology & Cutaneous Biology

Clinical Vice-Chair

Director of Dermatopathology Fellowship

Director of Pigmented Lesion Clinic

Thomas Jefferson University

Philadelphia

PA

Disclosures

JBL declares that he has no competing interests.

Acknowledgements

Dr Jason B. Lee would like to gratefully acknowledge Dr Laurel R. Schwartz, a previous contributor to this topic. LRS declares that she has no competing interests.

Peer reviewers

Craig G. Burkhart, MD

Clinical Professor

Department of Medicine

Medical College of Ohio

Toledo

OH

Disclosures

CGB declares that he has no competing interests.

Mark Hurt, MD

Dermatologist

Cutaneous Pathology

WCP Laboratories

Missouri

MO

Disclosures

MH declares that he has no competing interests.

Veronique Bataille, MBBS

Consultant Dermatologist

West Herts NHS Trust and King's College London

London

UK

Disclosures

VB declares that she has no competing interests.

  • Nevi images
  • Differentials

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  • Patient leaflets

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