Cases reported "Lichen Planus, Oral"

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1/3. Exacerbation of oral erosive lichen planus by combination of interferon and ribavirin therapy for chronic hepatitis c.

    hepatitis c virus (HCV) induces extrahepatic manifestations such as oral lichen planus (OLP) as well as chronic liver diseases. The treatment of HCV-related chronic liver disease has evolved from the use of a single agent, mainly interferon (IFN), to the combination of IFN and ribavirin. We present a case of erosive OLP, cutaneous lichen planus (CLP), and leukoplakia of the vocal cord in a man with chronic hepatitis c infection treated with IFN and ribavirin. A 65-year-old man suffered from OLP before undergoing combination of IFN and ribavirin therapy for chronic hepatitis c. He was initially treated with IFNbeta (6 million units (MU) /day for 2 weeks), then a combination of IFNalpha-2b (6 MU/day for 2 weeks and 3 times a week for 14 weeks) and ribavirin (400-600 mg/day). The OLP lesion was not aggravated by application of steroids during the 7 weeks after the treatment, but after 18 weeks, the combination of IFN and ribavirin was stopped because of aggravation of the OLP. Elevated aminotransferase levels returned to normal during the therapy. But 7 weeks after discontinuation, aminotransferase levels rose to 10 times the normal range. Five months after discontinuation, the papules of CLP appeared. Eight months after discontinuation, the OLP erosion had gradually reduced, but some erosion remained. Aminotransferase levels were decreased, but serum HCV rna had not disappeared. Caution should be exercised when IFN or ribavirin therapy is given to chronic hepatitis c patients with prior erosive OLP.
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ranking = 1
keywords = leukoplakia
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2/3. dyskeratosis congenita: oral hyperkeratosis in association with lichenoid reaction.

    dyskeratosis congenita is an inherited disorder that usually presents in males, consisting of a triad of leukoplakia of the mucous membranes, nail dystrophy and skin pigmentation. Whilst most cases are X-linked, autosomal dominant and recessive forms have also been reported. The significance of the condition lies in premature mortality arising from either bone marrow failure or malignant change within the areas of mucosal leukoplakia. We present a case (X-linked recessive form) where the classic triad of signs were present, along with the development of lichenoid reaction in the buccal and labial mucosa. This is believed to be the first case in which such a reaction has been noted together with the oral hyperkeratosis. The identification of a white patch within the mouth of a child, in the absence of any other obvious cause must arouse suspicion of this rare condition. All clinicians should be aware of this rare genetic disorder so that early referral can be made and appropriate management instigated.
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ranking = 2
keywords = leukoplakia
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3/3. Oral squamous cell carcinoma around dental implants.

    It is well documented that oral squamous cell carcinoma (OSCC) is related to risk factors such as smoking and alcohol consumption as well as premalignant lesions and conditions such as leukoplakia, oral lichen planus (OLP), and previous malignancy of the upper respiratory system and gastrointestinal tract. Osseointegrated dental implants are rarely reported in association with OSCC. This article presents 2 cases of OSCC adjacent to dental implants in patients at risk for oral cancer--1 was a heavy smoker with OLP; the other had a history of previous oral and colon cancer. Six additional cases of malignancy adjacent to dental implants were retrieved from the literature; the majority of cases had at least 1 recognized risk factor for oral cancer. Although such cases are rarely reported, patients at risk for oral cancer, especially those with multiple existing risk factors, that present with failing dental implants should be thoroughly evaluated to rule out the presence of malignancy disguised as peri-implant disease.
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ranking = 1
keywords = leukoplakia
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