Home › Dermpedia textbook › Melanocytic proliferations › Dendritic melanocytic proliferations

Blue nevus

    Editor: unassigned
    Article Contributors: 
    Sean Klepper M.D.
    Artur Zembowicz M.D....

    Clinical Features:

    • Slightly raised, bluish, dome-shaped papule, usually less than 1 cm
    • Most commonly present on the dorsa of the hands and feet, face and scalp
    • Childhood predominance
    • Benign,. with rare transformation to melanoma

    Histologic Features:

    • Bundles of bipolar, spindle-shaped dendritic melanocytes infiltrating between dermal collagen budles, most often in the upper dermis
    • The melanocytes have long dendritic processes and ovoid nuclei with evenly distributed chromatin
    • Most of the cells contain dense accumualations of fine melanin granules
    • Melanophages are frequently present, and may be numerous.
    • The dermis shows fibrosis.
    External Links:
    Differential Diagnosis (also link to): 

    Cases associated with this book:

  • Blue nevus
    Author: Artur Zembowicz M.D. Ph.D.

    Conference: DermatopathologyConsultations.com Teaching Collection
  • Blue nevus
    Author: Artur Zembowicz M.D. Ph.D.

    Conference: DermatopathologyConsultations.com Teaching Collection