Dermatology Flashcards
WHat is a macule?
A flat area of colour change,
<1.5cm in diameter
What is a papule?
RASH = PAPULAR
An elevated lesion,<0.5cm in diameter
WHat is vesicle?
Elevated lesion containing fluid <0.5cm in diameter
What is bulla?
Elevated lesion containing fluid >0.5cm in diameter
bulla
papule
plaque
vesicles
macule
nodule
patch
What is a nodule?
Palpable solid lesion 0.5-2cm in diameter
Elevated lesion which contains pus <1cm in diameter is called…
PUSTULE
What is a plaque?
A palpable but flat lesion >0.5 cm diameter Most are elevated, but can also be a thickened area without being visibly raised above the skin surface
A Round (coin-shaped) lesion is called?
NUMMULAR/DISCOID
What is annular?
Lesions grouped together to form a circle
What is LICHENIFICATION
Accentuation of skin markings associated with thickening of epidermis
Linear crusts and erosions due to scratching is called?
EXCORIATIONS
LICHENIFICATION is caused by?
caused by scratching or rubbing
lichenification
Nummular/discoid eczema
Annular lesion – tinea corporis
What is PETECHIAE
Extravasation of blood into the skin. Non-blanching <0.2cm in diameter
WHat is PURPURA
is it blanching or non blanching
Extravasation of blood into the skin. Non -blanching
0.2-1cm in diameter
What is ECCHYMOSES
Extravasation of blood into the skin. Non-blanching >1cm in diameter
What is URTICARIA/HIVES
Elevated lesions formed by local dermal oedema
Urticaria
Image shows petechiae (pin-dots), purpura (mid sized) and ecchymoses
(large, coalescing lesions)
