Superficial Pyoderma

Superficial Pyoderma

Superficial pyoderma in a dog (Courtesy of Bristol BioMed Image Archive)

• Affects epidermis and upper infundibulum of hair follicles
• No scarring when healed
• Grossly:
  • Erythema
  • Alopecia
  • Papules and pustules
  • Crusts
  • Epidermal collarettes
• Microscopically:
  • Intraepidermal pustular dermatitis
  • Superficial suppurative folliculitis
  • Bacteria commonly not seen