Dermatology - Dermatitis

Question 1

Diagnostic Criteria - Atopic Eczema

Answer 1

Itching + three or more of:
- Visible/history of flexural rash
- History of atopy
- Dry skin
- Onset <2 years old

Question 2

Management - Atopic Eczema (Mild)

Answer 2

Emollients
Mild topical steroids

Question 3

Management - Atopic Eczema (Moderate)

Answer 3

Emollients
Moderate topical steroids
Consider topical calcineurin inhibitors and bandaging

Question 4

Management - Atopic Eczema (Severe)

Answer 4

Emollients
Potent topical corticosteroids
Consider topical calcineurin inhibitors, bandaging, phototherapy and oral corticosteroids

Question 5

Definition - Contact Allergic Dermatitis

Answer 5

A type 4 hypersensitivity reaction caused by an allergen that comes in contact with the skin e.g. nickel, latex

Question 6

Presentation - Contact Allergic Dermatitis

Answer 6

Skin changes confined to the site of allergen contact
Erythema
Itchy, blistered, dry, cracked skin

Question 7

Diagnosis - Contact Allergic Dermatitis

Answer 7

Patch testing

Question 8

Management - Contact Allergic Dermatitis

Answer 8

Avoidance of triggers
Emollients
Topical corticosteroids for severe disease

Question 9

Histology Findings - Contact Allergic Dermatitis

Answer 9

Spongiotic dermatitis

Question 10

Definition - Eczema Herpeticum

Answer 10

Superinfection of eczema with HSV

Question 11

Cause - Eczema Herpeticum

Answer 11

Herpes simplex virus type 1 or 2

Question 12

Patient Group - Eczema Herpeticum

Answer 12

Infants/children with dermatitis

Question 13

Presentation - Eczema Herpeticum

Answer 13

A rapidly progressive painful rash = monomorphic, punched out lesions
Fever
Irritability
Lymphadenopathy

Question 14

Diagnosis - Eczema Herpeticum

Answer 14

Viral swabs + PCR

Question 15

Management - Eczema Herpeticum

Answer 15

Acyclovir IV

Question 16

Complications - Eczema Herpeticum

Answer 16

Can be fatal
Bacterial superinfection

Question 17

Definition - Irritant Contact Dermatitis

Answer 17

An irritant skin reaction due to repeated exposure to an external agent

Question 18

Presentation - Irritant Contact Dermatitis

Answer 18

Itching, burning, red skin

Question 19

Diagnosis - Irritant Contact Dermatitis

Answer 19

Patch testing
Consider skin biopsy

Question 20

Management - Irritant Contact Dermatitis

Answer 20

Irritant avoidance
Emollients
Topical corticosteroids (hydrocortisone)

Question 21

Definition - Seborrheic Dermatitis

Answer 21

Chronic inflammatory skin condition that results in dermatitis of areas rich in sebaceous glands

Question 22

Cause - Seborrheic Dermatitis

Answer 22

Inflammatory reaction to Malassezia furfur

Question 23

Associated Conditions - Seborrheic Dermatitis

Answer 23

HIV
Parkinson’s

Question 24

Presentation - Seborrheic Dermatitis (Infants)

Answer 24

Cradle cap

Question 25

Presentation - Seborrheic Dermatitis

Answer 25

Itchy, scaly lesions
Usually affecting nasolabial folds, eyebrows, chest and scalp

Question 26

Additional Features - Seborrheic Dermatitis

Answer 26

Otitis externa
Blepharitis

Question 27

Diagnosis - Seborrheic Dermatitis

Answer 27

Clinical diagnosis

Question 28

Management - Seborrheic Dermatitis

Answer 28

Topical ketoconazole
Topical corticosteroids may be required