Junctional melanocytic nevus

Junctional melanocytic nevus

Chris Schach

Author Bio -

Junctional melanocytic nevi

Key Points

  • Junctional Nevi are a sub-class of Common Acquired Melanocytic Nevi
  • Typically they are light to dark brown macules
  • Junctional Nevi are benign proliferations of melanocytes in the epidermis.
  • Common finding in all people

Junctional Nevi are clusters of melanocytes that develop within the superficial layer of skin


There are three types of common acquired melanocytic nevi; Junctional nevi

Differential diagnosis

  •          Congenital Nevus
  •          Melanoma
  •          Café’-au-lait macule
  •          Lentigo Maligna
  •          Atypical Nevus
  •          Solar Lentigo
  •          Seborrhoeic Keratosis
  •          Acanthoma


Key points

  • Clinical presentation is the most important aspect of diagnosis
  • Histologic examination confirms diagnosis

Diagnosis is primarily made by history and clinical presentation. When the clinical picture is murky



Key points

  • In most cases moles do not require treatment
  • Suspicious moles should be removed and examined
  • Prevent skin damage from sun exposure

Junctional Nevi are

It is important for individuals who have a significant number of nevi to have counseling about the dangers of excessive sun exposure


  1. Rooks Textbook of dermatology
  2. Clinical Dermatology
  3. General Dermatology
  4. www.emedicinemedscape.com
  5. www.up-to-date.com
  6. www.dermnetz.org
  7. www.ncbi.nlm.nih.gov






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