Dermatosis Papulosa Nigra (DPN) – Seborrheic Keratoses

Serving Hamilton, Stoney Creek, Grimsby and surrounding areas

Dermatosis Papulosa Nigra – Cheek

Dermatosis Papulosa Nigra – Cheek

Dermatosis Papulosa Nigra – Cheek and Temples

Dermatosis Papulosa Nigra

  • Are tiny 1 mm to 3 mm areas of thickened skin which can develop anywhere on the skin’s surface
  • Are commonly known by their short form “DPN”
  • Are NOT cancerous and NEVER develop into a skin cancer
  • May be brown or black in colour and may be flat or raised
  • Are NOT due to diet or sun damage
  • Often appear as the skin matures
  • Are NOT contagious
  • May get gradually larger with time and do not disappear spontaneously
  • Are most commonly seen in people with Asian or African ancestry
  • Are a type of Seborrheic Keratosis, which is a harmless spot that appears as the skin matures

Treatment:

  • Small DPN (under 1 mm diameter)
    • Each spot is lightly touched with a fine electrical instrument (electrocautery)
    • The treatments sting or feel hot to the touch, but this only lasts a few seconds
    • There is no bleeding and no stitches required
    • The DPN will turn grey-white in colour, and normally form small crusts for about one week
    • The treated area may remain sore for 1 to 2 hours
    • You should apply an antibiotic ointment nightly to the treated areas until they are healed
    • A bandage is not necessary
    • You may bathe normally
    • The skin should be healed within 7 to 10 days
    • You may notice residual pink marks, which will gradually fade
    • After the removal, there may be a residual white mark
    • There is a small chance that the DPN could grow back, although it is normal to develop new lesions over time
  • Large DPN (greater than 1 mm diameter)
    • The skin adjacent to the lesions is injected with a local anesthetic to numb the area
    • The DPN is removed and the base treated with electrocautery
    • There is no bleeding and no stitches required
    • The treated areas form small crusts for about one week, this is normal.
    • The treated area may remain sore for 1 to 2 hours after the anesthetic wears off
    • You should apply an antibiotic ointment nightly to the treated areas until they are healed
    • A bandage is not necessary
    • You may bathe normally
    • The skin should be healed within 7 to 10 days
    • You may notice residual pink marks, which will gradually fade
    • After the removal, there may be a residual white mark
    • There is a small chance that the DPN could grow back, although it is normal to develop new lesions over time
  • There is no cream at this time that will remove dermatosis papulosa nigra
  • Treatment of dermatosis papulosa nigra is not covered by OHIP or private health insurance

What if you are interested to learn more?

For your convenience, the services above are available in my office.

If you would like to learn more:

  • Please click on the underlined links above
  • E-Mail Us
  • Or give us a call at 905-549-1025