What is the characteristic appearance of impetigo?

What is the characteristic appearance of impetigo?

• A. Firm, dry crust surrounded by erythema
• B. Honey-colored crusts over a lesion
• C. Painful, grouped vesicles on a red base
• D. Hot, tender, edematous plaques

Answer: (B)

Impetigo is primarily characterized by the presence of honey-colored crusts that form over lesions. This appearance is a hallmark sign of the condition, commonly seen in children and often resulting from bacterial infection, particularly by Staphylococcus aureus or Streptococcus pyogenes. The initial lesions are typically vesicular or pustular and can ooze, leading to the formation of these characteristic crusts when they dry. The honey-colored crusts can also be described as golden, which is a distinctive feature that helps differentiate impetigo from other skin conditions. In contrast, other options describe appearances associated with different dermatological or infectious conditions. For instance, firm, dry crusts surrounded by erythema may suggest a healing process rather than the active infection seen in impetigo. Painful, grouped vesicles on a red base typically point to herpes simplex virus infections, such as herpes labialis. Hot, tender, edematous plaques may indicate cellulitis or other inflammatory skin conditions, rather than impetigo. Understanding these distinctions is essential for accurate diagnosis and treatment.

Impetigo is primarily characterized by the presence of honey-colored crusts that form over lesions. This appearance is a hallmark sign of the condition, commonly seen in children and often resulting from bacterial infection, particularly by Staphylococcus aureus or Streptococcus pyogenes. The initial lesions are typically vesicular or pustular and can ooze, leading to the formation of these characteristic crusts when they dry. The honey-colored crusts can also be described as golden, which is a distinctive feature that helps differentiate impetigo from other skin conditions.

In contrast, other options describe appearances associated with different dermatological or infectious conditions. For instance, firm, dry crusts surrounded by erythema may suggest a healing process rather than the active infection seen in impetigo. Painful, grouped vesicles on a red base typically point to herpes simplex virus infections, such as herpes labialis. Hot, tender, edematous plaques may indicate cellulitis or other inflammatory skin conditions, rather than impetigo. Understanding these distinctions is essential for accurate diagnosis and treatment.