Image Based Question – 73312

The causative organism for the condition depicted in image is?

A. Staphylococci

B. Candidal infection

C. Streptococcus

D. Actinomycetes

Correct Answer » A Explanation

Ans:A. Staphylococcus.

Impetigo:

• Lesions of common or superficial impetigo may contain group A ß-hemolytic streptococci, S aureus, or both.
• Most common skin infection in children.
• Highly contagious.

Lesions in bullous (staphylococcal) impetigo:

• Caused by S aureus.
• Are superficial, thin-walled & bullous.
• On ruptures →  results in thin, transparent, varnish-like crust appears.

Distinguished from stuck-on crust of common impetigo.

• Is distinctive appearance of bullous impetigo.
• Due to local action of epidermolytic toxin (exfoliation).