Summary
Definition
History and exam
Key diagnostic factors
- presença de fatores de risco
- dor, edema, drenagem (aguda)
- dobra ungueal edemaciada e purulenta (aguda)
- irregularidades da lâmina ungueal (crônica)
- edema/vermelhidão das dobras ungueais (crônica)
- dobras ungueais rosas e edemaciadas (crônica)
- cutícula ausente (crônica)
- anormalidades da lâmina ungueal subjacente (crônica)
Risk factors
- lesão microscópica ou macroscópica das dobras ungueais (aguda)
- riscos ocupacionais (agudos e crônicos)
- dano de barreira às dobras ungueais, cutícula (crônico)
- unha encravada
- medicamentos (crônico)
- crianças e adultos
- mulheres
Diagnostic tests
1st tests to order
- swab para coloração de Gram, cultura e sensibilidade (aguda ou aguda em crônica)
- swab para esfregaço de Tzanck (aguda, herpética)
Tests to consider
- hidróxido de potássio ou cultura fúngica (crônica)
- radiografia
- RNM
- biópsia cutânea/óssea
Treatment algorithm
paroníquia aguda
paroníquia crônica
retroníquia
Contributors
Authors
Shirin Zaheri, MBBS, BSc, MRCP
Dermatology Consultant
Charing Cross Hospital
Imperial College NHS Trust
London
UK
Disclosures
SZ declares that she has no competing interests.
Khawar Hussain, BSc, MRCP, FHEA
Specialty Registrar in Dermatology
Charing Cross Hospital
Imperial College NHS Trust
London
UK
Disclosures
KH has been reimbursed by Sanofi for conference travel expenses.
Acknowledgements
Dr Shirin Zaheri and Dr Khawar Hussain would like to gratefully acknowledge Dr Catherine Hardman, Dr Nathaniel J. Jellinek, Professor C. Ralph Daniel III, and Dr Shaimaa Nassar, previous contributors to this topic.
Disclosures
NJJ, CH, and SN declare that they have no competing interests. CRD is an author of a number of references cited in this topic.
Peer reviewers
Shehla Admani, MD
Clinical Assistant Professor of Dermatology
Stanford University School of Medicine
San Jose
CA
Disclosures
SA declares that he has no competing interests.
Peer reviewer acknowledgements
BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.
Disclosures
Peer reviewer affiliations and disclosures pertain to the time of the review.
References
Key articles
Daniel CR 3rd. Paronychia. Dermatol Clin. 1985 Jul;3(3):461-4. Abstract
Leggit JC. Acute and chronic paronychia. Am Fam Physician. 2017 Jul 1;96(1):44-51.Full text Abstract
Relhan V, Goel K, Bansal S, et al. Management of chronic paronychia. Indian J Dermatol. 2014 Jan;59(1):15-20.Full text Abstract
Shafritz AB, Coppage JM. Acute and chronic paronychia of the hand. J Am Acad Orthop Surg. 2014 Mar;22(3):165-74. Abstract
Reference articles
A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.

Differentials
- Panarício herpético
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