Physical Signs

Rubin, Adam I.; Baran, Robert

doi:10.1002/9781118286715.ch2

Cited by 6 publications

(2 citation statements)

References 306 publications

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“…Onychomadesis is characterized by separation of the nail plate from the matrix, with persistent attachment to the nail bed and often, but not always, eventual shedding. When a Beau's line results in complete loss of continuity with the matrix, it is no longer a Beau's line but becomes onychomadesis . Onychomadesis has been associated with infection, autoimmune disease, critical illness and medications.…”

Section: Summary Of Onychomadesismentioning

confidence: 99%

Onychomadesis: literature review

Hardin

Haber

2015

Br J Dermatol

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Onychomadesis is characterized by separation of the nail plate from the matrix with persistent attachment to the nail bed and often, but not always, eventual shedding. Onychomadesis has been associated with infection, autoimmune disease, critical illness and medications. To our knowledge a literature review of all associations with onychomadesis has not been completed previously. Most commonly, onychomadesis has been reported in association with pemphigus vulgaris and hand-foot-mouth disease, and following chemotherapy or antiepileptic medications. This article summarizes these key culprit associations, postulates the pathogenesis of nail matrix arrest and summarizes the clinical outcomes. We conducted a retrospective review of cases of onychomadesis reported from January 1960 to March 2013. Using the PubMed database, the literature was searched using the following terms: 'onychomadesis' and 'proximal nail shedding'. Also, an Ovid search was carried out using the same terms. In total 56 articles have been published, including our previously reported series of idiopathic onychomadesis. Articles pertaining only to Beau's lines and not true onychomadesis were excluded. Onychomadesis has been associated with autoimmune disease, other major medical illness, neonatal illness, medication and infection.

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Section: Summary Of Onychomadesismentioning

confidence: 99%

Onychomadesis: literature review

Hardin

Haber

2015

Br J Dermatol

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“…The differential diagnosis of parrot beak nails also includes the curved nails seen in pachyonychia congenita; however, parrot beak nails are not associated with discolored or thickened nails. Other nail curvature abnormalities include claw-like nails secondary to ill-fitting shoes, congenital curvature of the fourth toenail, distal hemitorsion in porphyria, and Kirner’s deformity [ 6 ].…”

Section: Discussionmentioning

confidence: 99%

Parrot Beak Nails Revisited: Case Series and Comprehensive Review

Chen

Cohen

2017

Dermatol Ther (Heidelb)

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The term “parrot beak nail” describes a morphologic change of the nail plate characterized by excessive forward curvature. It may be associated with systemic disease or, most commonly, occurs as an idiopathic finding complicated by delayed nail plate trimming. The characteristics of parrot beak nails in ten men are described, and the features of this acquired nail deformity are reviewed. Of the ten patients, six presented with concurrent neuropathies that resulted in frequent foot injuries or falls. While the true incidence of parrot beak nails is unknown, this nail deformity occurred in 2.1 % of patients seen by a single physician during a 3-month period. In conclusion, parrot beak nails secondary to poor nail care may lead to functional impairment, tissue injury, and subsequent infections. Therefore, it is important for clinicians to look for these nail lesions on cutaneous examination and recommend frequent nail trimmings to individuals with parrot beak nails.

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