Back issues No.4 - 2000 / Case Report  

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Lichen Striatus with Onychodystrophy - A Case Report -
Wen-Wei Feng, Ji-Chen Ho
Dermatol Sinica 18: 298-304, 2000

We herein present a 16-year-old boy who had multiple mildly itchy, erythematous papules with confluence in a linear arrangement on his left thumb for 6 months. Preceding longitudinal ridges and splitting of the left thumbnail were also noted on the ipsilateral side of skin lesions 6 months earlier. Biopsy of the thumb skin lesions revealed a band-like lymphohistiocytic infiltrate in papillary dermis and perivascular and periappendage inflammatory infiltrate in the dermis. No growth of fungus was found from the nail culture. A diagnosis of lichen striatus with onychodystrophy was made. He was not given any special treatment. The skin lesions disappeared completely and the nail change became less obvious during a follow up of 6 months. We suggest that the nail matrix biopsy is not necessary in onychodystrophy associated with lichen striatus except when a nail matrix tumor is considered in the differential diagnosis.

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