Reigneau Marie, Pouaha Jean, Truchetet François
Department of Dermatology, Beauregard Hospital, CHR Metz-Thionville, 21, rue des Frères, 57100 Thionville, France.
Eur J Dermatol. 2013 Nov-Dec;23(6):882-4. doi: 10.1684/ejd.2013.2226.
Retronychia (RN) refers to the incarnation of the nail plate in the proximal nail fold. We report four clinical cases of this little-known pathology, where there may be a long delay in diagnosis. RN exhibits a triad of clinical features, which are chronic paronychia, liquid discharge from under the nail fold and disruption of the linear nail growth. Chronic paronychia is often confused with bacterial or fungal infection. Empirical antibiotic treatment is not useful. Nail plate avulsion is the diagnostic and curative procedure of choice. Subsequent nail growth is normal without dystrophia and no recurrences are observed. Knowledge of this pathology avoids misdiagnosis, unnecessary antibiotic or local treatments and allows adequate surgical management.
逆行甲剥离（RN）是指甲板在近端甲襞处嵌入。我们报告了4例这种鲜为人知的病理情况的临床病例，其诊断可能会有很长时间的延迟。RN表现出三联征临床特征，即慢性甲沟炎、甲襞下有液体流出以及指甲线性生长中断。慢性甲沟炎常与细菌或真菌感染相混淆。经验性抗生素治疗无效。甲板撕脱术是诊断和治疗的首选方法。随后指甲生长正常，无营养不良，且未观察到复发情况。了解这种病理情况可避免误诊、不必要的抗生素或局部治疗，并有助于进行适当的手术处理。
