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Oral lesions: Descriptive pathological terminology
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- Blister (bulla, pl. bullae): A separation; an elevated injury circumscribed, liquid content in the skin or mucosa.
- Scab: Dry material formed by clot and fibrin on the surface of the skin or mucosa.
- Dysplasia (dysplastic): Any abnormal development of cell size, shape, or organization in tissue.
- Erosion: A smooth, superficial ulceration.
- Scale: A thick, compact, superficial scaling of epithelium (keratinized).
- Stomatitis: Any generalized inflammatory situation of the oral mucosa.
- Node: A large, palpable, solid, circumscribed, elevated mass in the skin or mucosa.
- Hyperplasia (hyperplastic): An increase in the number of normal cells.
- Hyperkeratosis: A growth of the keratinized layer of the epithelium.
- Hypertrophy (hypertrophic): An increase in size caused by an increase in cell size, not cell number.
- Leukoplakia: A slow mucosal change characterized by plaques white, thick that do not come off.
- Macula: A circumscribed, non-elevated, discolored area that is distinct from surrounding tissue.
- Malignant: Anaplastic; a cancer that is potentially invasive and metastatic.
- Papule: A small, palpable, solid, circumscribed, raised mass on the skin or mucosa.
- Plaque: Any superficial, soft, slightly raised lesion.
- Pustule: A small, whitish, raised, circumscribed vesicle with purulent contents on the skin or mucosa.
- Keratosis (keratotic): An overgrowth and thickening of the keratinized epithelium (stratum corneum).
- Ulcer: A circumscribed, crateriform superficial lesion resulting from necrosis of the epithelium.
- Vesicle: A small blister; a small, circumscribed elevation of the skin or mucosa with serous fluid content.