Nevus (or naevus) is a general term that refers to a number of different, usually benign, pigmented lesions of the skin. Most birthmarks and moles fall into the category of nevi.

• melanocytic nevus: Nevus cells (melanocytes) are normally localized in the basal layer of the epidermis. Their proliferation may appear in:
  • the epidermis (junctional nevus),
  • in the epidermis and dermis (compound nevus),
  • or only in the dermis (intradermal nevus). Intradermal melanocytic nevus — a benign tumor in which the tumor cells form nests in the dermis, are regular and round, their cells having a central nucleus and single nucleolus. Some melanocytes may present melanin pigment in the cytoplasm (dark-brown, granular).
• dysplastic nevus
• blue nevus
• Blue Rubber Bleb Nevus Syndrome
• nevus flammeus (port-wine stain)

External links

• Atlas of Pathology Section of a melanocytic nevus
• Nevus Outreach
• Blue Naevus
• Spitz Naevus
• Deep Penetrating Naevus
• Melanocytic Naevus
• Halo Naevus
• Recurrent Naevus
• Congenital Naevus
• Ancient Naevus

Dermatology

Nevus | Nævus