T2: Approach to diagnosis Flashcards
1
Q
Morphology
Macule
A
- flat, circumscribed area of skin
discolouration - < 0.5-1 cm
2
Q
Morphology
Papule
A
- solid raised lesion
- < 0.5-1 cm
3
Q
Morphology
Nodule
A
- solid raised lesion
- > 0.5-1 cm
- goes deeper into dermis than papule
4
Q
Morphology
Tumour
A
- solid mass
- > 1 cm
5
Q
Morphology
Plaque
A
- circumscribed, solid, raised flat topped elevated area of skin
- > 0.5-1 cm
6
Q
Morphology
Vesicle
A
- raised lesion
- filled with clear fluid
- “small blister”
- < 0.5-1 cm
7
Q
Morphology
Bulla
A
- circumscribed fluid filled lesions
- “big blister”
- > 0.5 cm
8
Q
Morphology
Pustule
A
- circumscribed, elevated lesion
- contains pus
9
Q
Morphology
Wheal
A
- transient oedema in dermis
10
Q
Morphology
Abscesses
A
- large subcutaneous collection of pus
11
Q
Morphology
Cyst
A
- epithelium lined cavity containing fluid/sold material
12
Q
Morphology
Ulcer
A
- area of destruction of epidermis
13
Q
Morphology
Fissure
A
- crack in skin
14
Q
Morphology
Annular lesion
A
- round lesion
- clear in centre
15
Q
Morphology
Purpura
A
- area of RBCs in skin
- petechiae: smaller than purpura
- palpable purpura = vasculitis
- deep red, red purple
