W3/L1: Intro to derm Flashcards
Define erythema
Redness of the skin or mucous membranes due to vasodilation
Define scale
An abnormal accumulation of keratin resulting in a change in the skin surface
Define macule
A flat area of altered skin colour, which is impalpable
Macule examples (2)
Freckles
Depigmented macules of vitiligo
Define papule
An elevated (palpable) lesion <5mm
Papule examples (3)
Keratosis pilaris
Closed comedones
Molluscume contagiousum
Define nodule
An elevated (palpable) lasion .5mm (“lump”)
Define cyst
A nodule that has fluid within, so is fluctuant
Define plaque
A circumscribed, elevated area of skin whose broadness is greater than it’s thickness
Define wheal
An area of localised oedema of skin
Think like what Ali gets
Define vesicle
A fluid-filled blister
Give an example of vesivle
Herpes zoster
Define bulla
A large vesicle (<5mm)
Define pustule
A vesicle or bulla containing pus
Define erosion
A superficial loss of epidermis - doesn’t scar