Dermatology Flashcards
In an inflammatory history, what key points are different in derm?
Nature, site and progression
Recent contacts, stressful events, travel
History of atopy
Occupation and improvement away from work
DH
In a neoplastic history, what key points are different in derm?
Initial appearance and rate of change/evolution
Itch? Pain?
History of sunburn (occupation), tanning machines
Skin type
History of skin cancer/lesions & FH
Immunosupression
What are the stages of examining the skin?
Inspect
Describe
Palpate
Systematic check
How do you describe a lesion?
SCAMM Size Colour Associated secondary change (eg texture) Morphology Margin
Pigmented lesion acronym?
ABCDE Asymmetry irregular Border two or more Colours Diameter>6mm Evolution
What do you note on palpation?
Surface Consistency Mobility Tenderness Temperature
What does the systematic check include?
Nails
Scalp
Hair
Mucous membranes
What is the derm way of saying mole?
Pigmented melanocytic naevus
What is a comedome?
A plug in a sebaceous follicle, containing altered sebum, bacteria and cellular debris
Open (blackhead), closed (whitehead)
What sites are described as flexural?
Body folds (groin, neck, behind ears, popliteal fossae, antecubital fossae)
What sites are described as extensor?
Sacrum, buttocks, ankles, heels
What is a Köebner?
A linear eruption arising at site or trauma
Opposite of discrete?
Confluent
What is purpura?
Red/purple due to bleeding into skin, does not blanche on pressure
Petechiae if small, ecchymoses are larger bruise like patches
What is eccyhymoses?
Big bruise-like pupura
What are flat lesions described as?
Small: macule
Larger: patch
What are raised lesions called?
Small: papule
Large and domed: nodule
Large and table top: plaque
What is a vesicle? eg?
Small raised fluid filled lesions
eg in varicella zoster
What is larger than a vesicle?
A bulla
What is a pus containing lesion called?
Small: pustule
Large: Abscess
What can staph infection in the skin form?
Small: boil/furuncle around hair follicle
Large: Carbuncle
What is it called if someone scratches off the epidermis (eg in eczema)
Excoriated lesion
What are scales?
Flakes of stratum corneam
What is it called when you lose epidermis/dermis
Loss of epidermis: erosion
Loss of dermis: ulcer