W10L5 Common Dermatological Conditions

Question 1

What is onycholysis and what causes it (6 important causes)?

Answer 1

• Separation of the nail from the nail bed.

- Anaemia, psoriasis, fungal infection, dermatitis, repetitive trauma, diabetes.

Question 2

Describe the common features of eczema:

• Likely associated conditions
• 5 clinical features
• family history?

Answer 2

Ass. conditions: atopic triad

• Asthma
• Hayfever
• Eczema

Clinical features:

• itchy ++
• erythematous
• diffuse
• flexural: present on the thinnest skin
• worse in winter (dry) and summer (heat)

Family history is important

Question 3

What is a genetic mutation associated with atopic aczema?

Answer 3

Filaggrin mutation, which leads to reduced barrier function on the skin.

Question 4

What is lichenification of eczema?

Answer 4

Increased skin markings due to chronic rubbing/ scratching of dermatitis

Question 5

What is discoid eczema and how can you treat it?

What is the ddx?

Answer 5

• Eczema in annular disc like patches
• Respondsto potent
topical steroids

ddx: psoriasis, tinea

Question 6

What is the name of dermatitis which occurs as the result of very dry skin (water loss from the stratum corneum)? Who gets it and where? How do you treat it?

Answer 6

Asteototic eczema.

Elderly people at the front of their legs.

Treat it with topical steroids and emollients

Question 7

What is the name of dermatitis which occurs as the result of very dry skin (water loss from the stratum corneum)? Who gets it and where? How do you treat it?

Answer 7

Asteototic eczema.

Elderly people at the front of their legs.

Treat it with topical steroids and emollients

Question 8

What is the name of dermatitis which occurs as the result of very dry skin (water loss from the stratum corneum)? Who gets it and where? How do you treat it?

Answer 8

Asteototic eczema.

Elderly people at the front of their legs.

Treat it with topical steroids and emollients

Question 9

What is Pompholyx, what is it caused by and how do you treat it?

Answer 9

Vesicular
Hand (and foot)
Eczema
• Can be precipitated by
excessive washing and sweating
• Treat with potent topical steroid
• Avoidance of detergents and soaps and irritants