Dr. Rupak Sethuraman SPECIFIC LEARNING OBJECTIVES To know what are red lesions and why they appear red To know the commonly occurring red lesions of the oral mucosa. To know the clinical features, investigations and management of these lesions. FORMAT INTRODUCTION CLASSIFICATION COMMONLY OCCURRING RED LESIONS OF THE ORAL MUCOSA INTRODUCTION Red lesions are a large, heterogeneous group of disorders of the oral mucosa. Traumatic lesions, infections, developmental anomalies, allergic reactions, immunologically mediated diseases, premalignant lesions, malignant neoplasms, and systemic diseases are included in this group. The red color of the lesions may be due to: thin epithelium inflammation dilatation of blood vessels or increased numbers of blood vessels and extravasation of blood into the oral soft tissues. COMMON RED LESIONS OF THE ORAL MUCOSA Erythroplakia Geographic tongue Linear gingival erythema Lupus erythematosus Contact allergic stomatitis Median rhomboid glossitis Denture stomatitis Erythematous candidiasis ERYTHROPLAKIA Erythroplakia is defined as a red lesion of the oral mucosa that cannot be characterized as any other definable lesion . The lesion comprises an eroded area that is frequently observed with a distinct demarcation against the normal appearing mucosa. ETIOLOGY AND CLINICAL FEATURES Use of tobacco and alcohol are the most common risk factors. Most commonly found on the floor of the mouth, buccal vestibule, tongue and soft palate. Mostly asymptomatic but some patients may experience a burning sensation with food intake. 40% of all erythroplakias transform into malignancy. DIAGNOSIS The clinical diagnosis is based upon the appearance of a red patch that cannot be explained by any other definable cause such as trauma. If trauma is suspected, the cause such as a sharp tooth cusp or restoration should be eliminated. If healing does not occur in two weeks, biopsy is essential to rule out malignancy. MANAGEMENT Various methods of management include: 1. Carotenoids such as beta carotene and lycopene due to their antioxidant action. 2. Vitamins A, E and C 3. Topical Bleomycin 4. Photodynamic Therapy Clinical evaluation every six months is recommended. GEOGRAPHIC TONGUE Geographic tongue is a lesion affecting the dorsum and margin of the tongue. The lesion is also known as erythema migrans. CLINICAL FEATURES Geographic tongue changes its position on the tongue very frequently, leaving an erythematous area behind which reflects atrophy of the filiform papillae. Healing of the depapillated and erythematous areas starts after some time. Sometimes patients may have a burning sensation. When symptoms are present, topical analgesics may be used to obtain relief. Other drugs which have been tried include antihistamines, anxiolytic drugs and steroids. LINEAR GINGIVAL ERYTHEMA (LGE) LGE is limited to the soft tissue of the periodontium, appearing as a red line 2–3 mm in width adjacent to the free gingival margin. Unlike conventional periodontal disease, though, LGE is not significantly associated with increased levels of dental plaque. LUPUS ERYTHEMATOSUS Autoimmune disease Women affected more than men The typical oral manifestation comprises white striae in a radiating pattern and these may sharply terminate towards the centre of the lesions which has a more reddish appearance. The most affected sites are the gingiva, buccal mucosa, tongue and palate. The palate consists mostly of red lesions. MANAGEMENT When symptomatic intraoral lesions are present, topical steroids should be considered . To obtain relief of symptoms, potent topical steroids such as Clobetasol propionate gel 0.05%, Betamethasone dipropionate 0.05%, or Fluticazone propionate spray 50 mg aqueous solution are usually required. The treatment may begin with applications two to three times a day followed by a tapering during the next 6 to 9 weeks. The overall objective is to use a minimum of steroids to obtain relief. Any questions??? Thank you