13: Morphological terms Flashcards Preview

Dermatology Week 1 2017/18 > 13: Morphological terms > Flashcards

Flashcards in 13: Morphological terms Deck (14)
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1
Q

ABCDE of skin lesions

A

Assymmetry

Border irregularity

Colour(s)

Diameter

Evolving?

2
Q

What is a lesion?

A

Small area of disease

3
Q

What is an eruption / rash?

A

Widespread area of disease, usually involving several lesions

4
Q

What is a macule?

A

Flat, circumscribed, non-palpable lesion

usually associated with colour change e.g Cafe au lait macules

5
Q

What is a papule?

A

Small, circumscribed, palpable lesion <5mm in size

6
Q

What is a nodule?

A

Small, circumscribed, palpable lesion > 5mm in size

7
Q

What is a vesicle?

A

Blister of clear fluid, < 5mm

8
Q

What is a bulla?

A

Blister of clear fluid, > 5mm

9
Q

What is a patch?

A

A macule > 2cm in diameter

10
Q

What is a plaque?

A

A raised patch

11
Q

What is a pustule?

A

A pus filled blister

12
Q

What is a cyst?

A

Pus-filled cavity lined by epithelium

13
Q

What is a wheal?

A

Transitory bubble of oedema usually associated with urticaria

14
Q

What is an ulcer?

A

Circumscribed area of skin loss penetrating the dermis