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level: Level 1 Primary Lesions

Questions and Answers List

Question	Answer
A flat, circumscribed area that is a change in the color of the skin. Less than 1 cm in diameter. Examples are freckles, flat moles (nevil), petachiae, measles, scarlet fever. (Primary)	Macule
An elevated, firm circumscribed area less than 1 cm in diameter. (Primary)	Papule
A flat, non palpable irregular shaped macule more than 1 cm diameter. Examples are Vitiligo, pot wine stains, mongolian spots, caf'e au lait spots. (Primary)	Patch
Elevated, firm and rough lesions with flat top surface more than 1 cm in diameter. (Primary)	Plaque
Elevated irregular shaped area of cutaneous edema; solid transient; variable diameter. Examples are insect bites, urticaria, and allergic reactions. (Primary)	Wheal
Elevated, firm, circumscribed lesion; deeper than a papule. 1-2 cm in diameter. Examples are erythema, nodosum, lipomas.(Primary)	Node
Elevated, circumscribed, superficial, not into dermis, filled with serous fluid, less than 1 cm in diameter. Examples are Varicella, herpes zoster. (Primary)	Vesicle
Vesicle more than 1 cm in diameter. Example are Blister, pemphigus vulgaris. (Primary)	Bulla
Elevated, superficial lesions; similar with vesicle but filled with pus. (Primary)	Pustule
Elevated, circumscribed, encapsulated lesion; indermisor subcutaneous layer; filled with liquid or semisolid material. (Primary)	Cyst
Fine, irregular red lines produced by capillary dilation. (Primary)	Telangiectasia