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paronychia

Etiology: 1) bacterial a) Streptococcus b) Staphylococcus aureus 2) fungal Pathology: - suppurative inflammation of the nail fold surrounding the fingernail or toenail Clinical manifestations: - painful swelling of the nail fold - acute paronychia frequently follows minor trauma & affects only one finger [2] - chronic paronychia has a more insidious onset & tends to involve multiple fingers (present for at least 6 weeks) [2] * images [4,5] Complications: - subcutaneous abscess [7] - cellulitis Management: - dicloxacillin vs cephalexin - incision & drainage if subcutaneous abscess

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onychia

General

skin appendage disease inflammation bacterial infection mycosis; fungal infection

References

  1. Stedman's Medical Dictionary 26th ed, Williams & Wilkins, Baltimore, 1995
  2. Medical Knowledge Self Assessment Program (MKSAP) 17, 18. American College of Physicians, Philadelphia 2015, 2018.
  3. Rigopoulos D, Larios G, Gregoriou S, Alevizos A Acute and chronic paronychia. Am Fam Physician. 2008 Feb 1;77(3):339-46 PMID: 18297959
  4. Billingsley EM, James WD (images) Medscape: Paronychia http://emedicine.medscape.com/article/1106062-overview
  5. DermNet NZ. Paronychia (images) http://www.dermnetnz.org/fungal/paronychia.html
  6. Shafritz AB, Coppage JM. Acute and chronic paronychia of the hand. J Am Acad Orthop Surg. 2014 Mar;22(3):165-74. Review. PMID: 24603826
  7. NEJM Knowledge+ Dermatology