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Birthmarks

What are the common Birthmarks

Mongolian spots/Slate-grey nevus of childhood/dermal melanosis

  •  Bluish grey patches over buttocks/back/legs
  • May look like bruises
  • Common in dark skinned infants
  • Due to atypical presence of melanocytes within the dermis
  • Tend to fade over 1st year of life, can occur in adulthood.

 

Hemangioma of infancy/capillary hemangioma/Strawberry nevi

  •  Raised pink/red/purple lesion, soft, compressible
  • Most common tumour of infancy; up to 10% in caucasians
  • Develop in first weeks of life
  • Represents clonal expansion of endothelial cells
  • Usually grow rapidly from 6 months – 1 year of age, up to 3 inches diam
  • Tend to fade/shrink with time, 50% by 5 years, 90% by 9 years, often disappearing completely
  • Treatment with steroids/interferon/laser indicated only if multiple, very large or interferes with function

Port-wine stain/Nevus flammeus

  •  Flat pink/red/purple patches, typically on face, neck, limbs
  • Present at birth
  • Can be any size, grow proportionately with child
  • May thicken or develop bumps
  • Social/emotional complications
  • Some association with glaucoma & seizures
  • Do not resolve, are permanent
  • Laser treatment may be an option

 

Salmon patch/Angel kiss/Stork bite/nevus flammeus nuchae

  •  Minor vascular malformations – Macular stains
  • Flat, pink capillary hemagioma, often seen on eyelids, forehead & nape of neck
  • Occurs in up to 1/3 of all newborns
  • Clinical variant of portwine stain
  • Facial lesions usually fade over years, neck lesions may persist into adulthood.
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