Verrucous lichen planus: a rare presentation of a common condition

Abstract

Lichen planus is a chronic papulosquamous dermatoses in which both skin and mucosae are involved. There are various morphological forms of lichen planus. Hypertrophic lichen planus is one of the rare clinical variants. Herein, we report a very unusual presentation of hypertrophic lichen planus. A similar presentation has not been reported in literature yet, to the best of our knowledge.

A rare case of hypertrophic lichen planus caused by ingestion of ink

“…It is the most pruritic variant of all LP. 11,12 Here, we report a very unusual presentation of HLP caused by chewing refill pen.…”

“…Lichen planus (LP) is a common papulosquamous disorder that affects the skin, mucous membranes, nails and hair. 1 It is a disease of multiple etiology which includes autoimmunity, drugs, hepatitis C, colour developers and upper respiratory tract infection. [2][3][4][5] Many variants in morphology and location exist, including oral, nail, linear, annular, atrophic, hypertrophic, inverse, eruptive, bullous, ulcerative, lichen planus pigmentosus, lichen planopilaris, vulvovaginal, actinic, lichen planuslupus erythematosus overlap syndrome, and lichen planus pemphigoides.…”

Lichen planus verrucosa: A challenging clinical and histologic subset of hypertrophic lichen planus

“…Of interest, because of its potential clinical resemblance to verruca vulgaris, rare cases of hypertrophic LP have been reported as LP verrucosa. 5 In addition to the clinical resemblance, diagnosis may be further hampered by the presence of prominent papillomatosis, which is a variable feature within the histologic spectrum of hypertrophic LP. 1 In our case, verruca vulgaris was the favored clinical and histologic diagnosis in multiple biopsy specimens.…”

Lichen planus verrucosus in an association with vitiligo

“…Longstanding, non-healing, severely itching hypertrophic LP lesions are prone to develop malignancy. There are reports of metastatic squamous cell carcinoma and keratoacanthoma arising from long standing hypertrophic lesions [31,32]. A. R. Bowen et al study reports, that distinguishing keratoacanthoma and hypertrophic LP can be difficult because both have similar histopathological features, and evaluation of p53, MIB-1 and perforating elastic fibers is a tool in differential diagnosis [33].…”