Amber-colored, crusted lesions (clinical case). Diagnosis:

Correct answer: A. Impetigo

• A. Correct. Impetigo classically presents with characteristic amber/honey-colored crusted lesions, typically caused by Staphylococcus aureus or Streptococcus pyogenes.
• B. Herpes simplex presents with grouped vesicles that rupture into ulcers, not classically described as 'amber-colored crusts.'
• C. Lichen planus presents with white reticular (Wickham's striae) or erosive lesions, not amber crusting.
• D. Pemphigus vulgaris presents with flaccid bullae and erosions, not honey-colored crusting.

Note: Amber/honey-colored crusts are the characteristic clinical feature of impetigo.