Cellulitis

Question 1

Cellulitis

Answer 1

Bacterial infection of dermis and subcutaneous tissues

Question 2

Aetiology of cellulitis

Answer 2

• venous insufficiency
• skin breaks
• lymphoedema
• type II diabetes
• obesity

Question 3

Main pathogens causing cellulitis

Answer 3

• staph aureus
• strep pyogenes
• MRSA

Question 4

Clinical features of cellulitis

Answer 4

• unilateral, shins
• diffuse erythema
• swelling/oedematous
• fever, malaise

Question 5

Signs of staph aureus cellulitis

Answer 5

• bullae
• golden crust

Question 6

Cellulitis classification system

Answer 6

ERON system
I - no systemic toxicity
II - systemically unwell/comorbidity
III - sig. systemic upset
IV - sepsis or necrotising fasciitis

Question 7

Eron classification system

Answer 7

cellulitis

Question 8

Investigating/diagnosing cellulitis

Answer 8

• clinical diagnosis
• bloods show raised CRP

Question 9

Cellulitis differentials

Answer 9

• DVT
• varicose eczema
• erisypelas
• necrotising fasciitis