Introduction to Dermatology

Question 1

Primary Lesions
• They represent the ‘_________ ’ of diseases
• They occur on previously ________ skin

Answer 1

family

healthy

Question 2

The main primary lesions are
• Macule = a ________________ of the skin;_____ <1cm> = ________

• Papule= a __________________ lesion <1cm> = ___________

• Vesicle = – _____________ space in the ________ <1cm> = _________

Answer 2

change in colour ; flat; Patch

raised, palpable; Plaque

fluid-filled ; epidermis; Bulla

Question 3

Primary lesions

•Wheal : _______________________ that is _______/________

• Nodule/_________ :_________ lesion ________ in the skin

• Pustule;__________ ; __________ – ______ filled space

• Cyst -______-like _______ with an epithelial lining. Contains _______ or _______

Answer 3

oedematous papule or plaque; transient/fleeting

Tumour ; Raised; deeper

Furuncle; Abscess; pus

sac; nodule; fluid or debris

Question 4

Pus is made up of ________ and __________

Answer 4

leucocytes

liquor puris

Question 5

Secondary Lesions
• These are changes ___________ on the ____________

• May be due to manipulations from the exterior or evolution of the initial
lesions

Answer 5

superimposed; primary skin lesions

Question 6

Secondary lesions

They include:
➢Crusts – adherent, _________,_____, or _________ on the skin
➢Erosions – loss of the _________
➢Ulceration –breach (loss) in the _________ and ____________
➢Scale - excess accumulation of ‘___________’ which are fragments of ___________
➢Fissures –______ in the _________

Answer 6

dried serum, exudate or blood

epidermis

epidermis; part of the dermis

dead skin; stratum corneum

crack; epidermis

Question 7

Secondary lesions

➢Atrophy - _________ of the epidermis

➢Lichenification – _________ of the epidermis with accentuation of ________

➢Scar/keloid – permanent ______ changes due to damage extending to the ________

Answer 7

thinning

thickening; skin lines

fibrotic; dermis

Question 8

Keloids extend beyond the borders of injury

T/F

Answer 8

T

Question 9

Secondary lesions

➢Excoriation – loss of epidermal integrity due to ____________

➢Erythema – ________ redness of the skin due to ____________

Answer 9

scratching

blanchable; vascular dilatation

Question 10

Shapes and Distributions

• Lesion shapes:
➢____________ – ring like
➢ ___________ – shaped like an arc
➢ ___________/ Nummular/___________- all describe coin-shaped lesions
➢Figurate/___________ – lots of ring-like shapes
➢ ___________ – in a web or net-like pattern
➢ ___________- indented in the centre
➢ ___________ – lesions with a bulls-eye or multiple rings of varying colours

Answer 10

Annular

➢Arcuate
➢Discoid/round
➢/Polycyclic
➢Reticulate
➢Umbilicated
➢Targetoid

Question 11

Distribution
• _________ – just one lesion on any part of the body
• _________ – lesions are separate from each other; even if multiple
• _________ – lesions are in groups or bunched up together but not running into one another
• _________ – lesions are multiple and merge into one another
• _________ – lesions are in a particular area
• _________ – lesions are found over the entire body

Answer 11

• Solitary
• Discrete
• Clustered
• Coalescing
• Localised
• Generalised

Question 12

Other bedside examination tools
• Hand lens –for ______________

• Dermoscope – to ______________ of lesions in the skin (and appendages)

Answer 12

image accentuation

increase magnification

Question 13

Bedside examination tools

• Wood’s lamp – _______; Erythrasma; _______________

• Glass slide- _____________

Answer 13

Vitiligo; Pityriasis versicolor

Diascopy