Erysipelas

Definition

Erysipelas is a bacterial skin infection caused primarily by Streptococcus pyogenes, characterized by raised, red, and swollen patches on the skin. It often affects the face and legs and can be accompanied by fever and chills.

5 Must Know Facts For Your Next Test

1. Erysipelas commonly affects the upper dermis and superficial lymphatics.
2. The primary causative agent is Streptococcus pyogenes, also known as Group A Streptococcus.
3. Symptoms include sudden onset of fever, chills, fatigue, and a distinct red rash with raised borders.
4. Risk factors include breaks in the skin, such as cuts or ulcers, as well as conditions like diabetes or immune suppression.
5. Treatment typically involves antibiotics such as penicillin or erythromycin.

Review Questions

• What is the primary causative agent of erysipelas?
• Which layers of the skin are primarily affected in erysipelas?
• List at least two common symptoms associated with erysipelas.

Related terms

Cellulitis:

A common bacterial skin infection that affects deeper layers than erysipelas.

Impetigo:

A highly contagious skin infection causing red sores that can burst and develop honey-colored crusts.

Necrotizing Fasciitis:

A severe bacterial infection causing tissue death; often called flesh-eating disease.