The Nail in Lichen Planus

Lichen Planus of the Nail Presenting as a Tumor: Diagnosis by Longitudinal Nail Bed Biopsy

“…As shown in this case, the pathologic findings in lichen planus of the nail are similar to those of lichen planus of the skin 8 …”

“…As shown in this case, the pathologic findings in lichen planus of the nail are similar to those of lichen planus of the skin. 8 Therapy of ungual lichen planus with topical agents is generally unsuccessful. Local injections of corticosteroid preparations and cautious use of systemic corticosteroids have been a d~o c a t e d .~ This case shows that lichen planus can involve only one nail and may show massive subungual hyperkeratosis presenting as a nail bed tumor.…”

Oral lichen planus: a condition with more persistence and extra‐oral involvement than suspected?

“…Self reported possible nail involvement in the study population was relatively high (27.6%). The reported incidence of nail involvement associated with OLP in other studies varies from 1% to 10% (27)(28)(29) being considered even uncommon by some (5,30). However, it should be noted that the nail features described in the present study may be associated with LP but are by no means specific or pathognomonic and it seems likely that the relatively high prevalence of reported nail involvement is misleading.…”

Nail lichen planus: epidemiological, clinical, pathological, therapeutic and prognosis study of 67 cases

“…However, it is only one century later when Samman stated that specific nail involvement occurs in about 10% of the patients with LP and permanent damage of at least one nail occurring in approximately 4% of patients 1 . The histological features on NLP were initially described by Zaias in 1970 4 …”

“…1 The histological features on NLP were initially described by Zaias in 1970. 4 NLP has not been documented enough in the literature; only three series were located via a Medline search. Among them, only one reported information about response to treatment and longterm follow-up in NLP.…”