Introduction

Question 1

Macule

Answer 1

Circumscribed discolored flat lesion not raised above level of surrounding mucosa

Question 2

Plaque

Answer 2

Slightly elevated area of mucosa with a flat surface

Question 3

Vesicle

Answer 3

Fluid filled elevated lesion <5mm in diameter

Question 4

Bulla

Answer 4

Fluid filled elevated lesion >5 mm in diameter

Question 5

Papule

Answer 5

Circumscribed elevated solid lesion <5mm

Question 6

Nodule

Answer 6

Circumscribed elevated solid lesion >5 mm

Question 7

Papillary

Answer 7

A lesion that has numerous surface projections

Question 8

Verrucous

Answer 8

An exophytic lesion with rough wart like projections

Question 9

Pustule

Answer 9

Circumscribed raised lesion containing pus

Question 10

Abscess

Answer 10

Localized collection of purulent exudate

Question 11

Endophytic

Answer 11

A lesion that is growing inwards into the underlying tissue

Question 12

Exophytic

Answer 12

A lesion that grows outwards from the surface epithelium

Question 13

Pedunculated

Answer 13

Exophytic lesion attached to the underlying tissue by a stalk

Question 14

Sessile

Answer 14

Exophytic lesion attached to the underlying tissue by a broad base

Question 15

Atrophy

Answer 15

Loss of tissue resulting in thinning of the epithelium and usually associated with erythema

Question 16

Erosion

Answer 16

Partial loss of the surface epithelium not extending through the full thickness

Question 17

Ulcer

Answer 17

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

Question 18

Indurated

Answer 18

Hardening of soft tissue usually due to chronic inflammation or malignancy

Question 19

Fixed

Answer 19

Lesion that is firmly attached to overlying or underlying structures

Question 20

Mobile

Answer 20

A lesion that is freely movable and not attached to the underlying or overlying structures

Question 21

Fissure

Answer 21

Linear slit or grooves in the skin or mucosa

Question 22

Fistula

Answer 22

Abnormal tract connecting two body cavities

Question 23

Reticular

Answer 23

Resembling a net

Question 24

Erythema

Answer 24

Redness of the mucosa usually caused by inflammation atrophy of capillary dilation

Question 25

Petechiae

Answer 25

Pin point red or purple spots caused by submucosal hemorrhage

Question 26

Ecchymoses

Answer 26

Red/purple macular area of submucosal hemorrhage/extravasated blood

Question 27

Hematoma

Answer 27

A localized swelling filled with blood