Skin Bacterial Infections

Question 1

Layers of skin affected by Impetigo

Answer 1

(Stratum corneum, epidermis

Question 2

Layers of skin affected by Erysipelas

Answer 2

(Upper dermis & lymphatics only)
Rarely involves lower dermis;
subepidermal oedema underlying
an uninvolved epidermis.

Question 3

Layers of skin affected by Cellulitis

Answer 3

(Lower dermis & subcutaneous fat)
Primarily not raised and demarcation
less distinct than erisypelas.

Question 4

Layers of skin affected by Necrotizing fasciitis

Answer 4

(Subcutaneous fat, fascial planes,

and deep muscle)