Pigmentary disorders of the skin during pregnancy

melasma:

• types

1. centrofacial
2. malar
3. mandbular

• histology

1. epidermal (72% of cases)
2. dermal (13%)
3. Mixed in 5%

• occurs in 50-70% of pregnant women

• Hyperpigmentation: Mucosa (Vulval Melanosis), Areola, Axilla
• Linea Nigra
• Pigmentary Demarcation Lines (Voigt or Futcher’s lines)
• Darkening of Moles:

1. there is a higher dermal proliferation of dermal melanocytes.
2. utlity of dermoscopy

Source of Information: WS02. Physiological Changes In Pregnancy: A Frequent Event. 2011 (10) – 20th Annual Congress of the EADV (European Academy of Dermatology and Venerology) – Lisbon (Lisboa), Portugal

Source of information: here