Korean J Dermatol.
1984 Aug;22(4):409-412.
Two Cases of Benign Lichenoid Keratosis
Abstract
- Benign lichenoid keratosis is an asyrnptomatic, isolated, plaque-like lesion frequently mistaken for basal cell carcinoma, Bowens disease, and actinic or seborrheic keratosis because of its variable clinical appearance. We present two cases of benign lichenoid keratosis. The first case was a 44-year-old female who had mild pruritic, ll x15rnrn sized, single, slightly elevated brownish plaque with fine scaling on the right zygornatic area of 5 years' duration. The second case was a 35-year-old female who had mild prutitic, single, pea- sized erythernatous patch on the left ala nasi of one month's duration. On histologic examination, these two cases showed same histologic findings, such as focal parakeratosis, moderate hyperkeratosis, irregular acanthosis and liquefaction degeneration of basal cells in the epidermis and band-like mononuclear infiltration and colloid bodies in the dermis.
