Introduction Flashcards
Macule
Circumscribed discolored flat lesion not raised above level of surrounding mucosa
Plaque
Slightly elevated area of mucosa with a flat surface
Vesicle
Fluid filled elevated lesion <5mm in diameter
Bulla
Fluid filled elevated lesion >5 mm in diameter
Papule
Circumscribed elevated solid lesion <5mm
Nodule
Circumscribed elevated solid lesion >5 mm
Papillary
A lesion that has numerous surface projections
Verrucous
An exophytic lesion with rough wart like projections
Pustule
Circumscribed raised lesion containing pus
Abscess
Localized collection of purulent exudate
Endophytic
A lesion that is growing inwards into the underlying tissue
Exophytic
A lesion that grows outwards from the surface epithelium
Pedunculated
Exophytic lesion attached to the underlying tissue by a stalk
Sessile
Exophytic lesion attached to the underlying tissue by a broad base
Atrophy
Loss of tissue resulting in thinning of the epithelium and usually associated with erythema
Erosion
Partial loss of the surface epithelium not extending through the full thickness
Ulcer
Break in the continuity of the oral mucosa due to loss of full thickness of oral epithelium resulting in exposure of underlying connective tissue which is usually coated by a white or yellow membrane
Indurated
Hardening of soft tissue usually due to chronic inflammation or malignancy
Fixed
Lesion that is firmly attached to overlying or underlying structures
Mobile
A lesion that is freely movable and not attached to the underlying or overlying structures
Fissure
Linear slit or grooves in the skin or mucosa
Fistula
Abnormal tract connecting two body cavities
Reticular
Resembling a net
Erythema
Redness of the mucosa usually caused by inflammation atrophy of capillary dilation
Petechiae
Pin point red or purple spots caused by submucosal hemorrhage
Ecchymoses
Red/purple macular area of submucosal hemorrhage/extravasated blood
Hematoma
A localized swelling filled with blood
