Incidence of Esophageal Lichen Planus in Patients With Known Oral Lichen Planus

Study Overview
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Brief Summary
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The lichen planus is a mucocutaneous disease of unknown etiology with an incidence of 1-2%, that affects in 30-70% of cases either the mucosa of the mouth, or partly in combination with infection of the skin, the oral with his known premalignant potential in up to 2-3% predisposed to the development of an oral squamous cell carcinoma.In rare cases, there is also an manifestation of the lining of the esophagus, which can then be associated with symptomatic strictures of the esophagus. The value of moreover increasingly established endoscopic imaging procedures are investigated as well as data of the natural long-term outcome in esophageal lichen planus infestation especially in view of malignant transformation.

Detailed Description
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The lichen planus is a mucocutaneous disease of unknown etiology that manifests itself with an incidence of 1-2% in 30-70% of cases either at the mucosa of the mouth, or partly in combination with infection of the skin, the oral with his known premalignant potential in up to 2-3% predisposed to the development of an oral squamous cell carcinoma. In rare cases, there is also an manifestation of the lining of the esophagus, which can then be associated with symptomatic strictures of the esophagus. In addition, four cases have been reported with esophageal squamous cell carcinoma in patients with esophageal lichen planus. The value of moreover increasingly established use of narrow-band imaging (a process for improving the detection of early cancers in the gastrointestinal tract by creating a maximum contrast between outright and altered mucosa, which could have already shown an improved detection rate of early lesions of the esophagus as well as squamous cell carcinoma), or the chromoendoscopy has means for example Lugol solution in correlation to the histopathologic findings in lichen planus), has not been investigated to date. Also, data of the natural long-term outcome in esophageal lichen planus infestation especially in view of malignant transformation are currently not available.

Official Title
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Incidence of Esophageal Lichen Planus in Patients With Known Oral Lichen Planus. Diagnostic Value of White Light Endoscopy, Narrow Band Imaging and Chromoendoscopy for Detection of Esophageal Manifestation in Patients With Oral Lichen.

Conditions
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Lichen Planus

Intervention / Treatment
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* Other: Esophageal lichen planus


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age ≥ 18 years Known lichen planus of the oral mucosa Exclusion Criteria: Severe cardiopulmonary disease - ASA (American Society of Anaesthesiology) class > III Antisecretory and nonsteroidal anti-inflammatory medication within the last month

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Esophageal lichen planus<br>White light endoscopy compared to narrow band imaging and chromoendoscopy with Lugol for detection of esophageal lichen. | Other: Esophageal lichen planus<br>* White light endoscopy compared to narrow band imaging and Lugol for detection of esophageal lichen.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Value of additional endoscopic enhancing imaging methods for detection of esophageal lichen planus. |  | 3-5 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Natural long-term incidence of esophageal lichen planus in patients with known oral lichen. |  | 3-5 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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narrow band imaging, Chromoendoscopy, Lugol