Last Updated: 2019-08-27

Author(s): Anzengruber F., Navarini A.

ICD11: -

Paronychia or onychomycosis caused by Candida spp. (usually C. albicans).

  • Women: Men 3:1
  • Especially on the index or middle finger.

  • Predisposition factors
    • ↑ Moisture load
    • Contact to carbohydrates
    • Hyperhidrosis
    • Acrocyanosis
    • Diabetes mellitus
  • Injuries (e.g. the cuticle) can lead to infection with Candida albicans. The Pathogens enter the proximal nail wall and infiltrate the entire paronychium.

  • Pre-curled, pressure-curled, reddish-irritated nail wall.
  • Erythematic, often pressure-dolent swelling of the paronychium. The associated delamination of the eponychium with the nail plate can lead to the penetration of bacteria and other mycoses. The nail plate can develop transverse grooves, with bacterial colonization (P. aeruginosa) it can come to a greenish discoloration.
  • Clinically a differentiation to tinea unguium (caused by dermatophytes) is not possible.

Bacterial and myco-smear from pus, scales or nail material.

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