title: Oral psoriasis in a patient with hepatitis C virus infection.
abstract: We report a case of 65-year-old patient with psoriasis vulgaris who developed a psoriatic manifestation on his lower lip, along with typical features of psoriasis on his trunk and extremities. Mucous membranes, palate and tongue were not affected. A biopsy specimen from lip showed acanthosis of the epidermis with parakeratosis, and mild cellular infiltrates in the upper dermis. He was also suffering from type C hepatitis, however, he had not been treated with interferons. Oral psoriasis involving the lip is extremely rare.
authors.affiliation: Department of Dermatology, Tokyo Medical and Dental University, School of Medicine, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Nishioka
mesh_terms: D000368:Aged; D001706:Biopsy; D006526:Hepatitis C / Q000150:complications*; D006801:Humans; D008046:Lip / Q000473:pathology; D008297:Male; D009059:Mouth Diseases / Q000150:complications* / Q000473:pathology; D011565:Psoriasis / Q000150:complications* / Q000473:pathology