A Case of Unilateral Keratosis Follicularis of Linear Distribution / 대한피부과학회지

ABSTRACT

Unilateral keratosis fotlicularis has the same histological features of classic Darier's diseases and is considered to be a localized variant of Darier's disease. Unlike classic Darier's disease, it is not related to family history but with a later age of onset, unilateral and linear lesions. Lack of solar aggravation and increased irritation from sweating also characterize this disease. A 45-year-old female presented with scaly follicular papules in a linear distribution limited to one side of her lower extremity. There was no family history or other signs of Darier's disease elsewhere in the body. Histopathological features were typical of acantholytic dyskeratosis. The condition was aggravated during the summer and regressed with residual pigmentation after topical application of corticosteroid and tretinoin.