Table 1.

Differential diagnosis of auricular inflammation

CATEGORYREPRESENTATIVE CONDITION
Infectious
  • Cellulitis, perichondritis

  • Otitis externa

  • Tuberculosis

  • Leprosy

  • Congenital syphilis (in neonates)

Trauma
  • Frostbite

  • Sunburn

  • Insect bite

Inflammatory
  • Sarcoidosis (lupus pernio)

  • Granulomatosis with polyangiitis

  • Relapsing polychondritis

Dermatologic
  • Contact dermatitis

  • Cystic chondromalacia

  • Chondrodermatitis nodularis helicis

  • Data from Damiani and Levine.9