Musculoskeletal and Skin: Osteoporosis, Psoriasis · USMLE Step 1

A pediatric patient with guttate psoriasis presents after a recent streptococcal infection. What is the typical distribution of lesions?

  1. Flexor surfaces and folds
  2. Extensor surfaces and trunk
  3. Face and scalp exclusively
  4. Palms and soles only
Show answer and explanation

Correct answer: Extensor surfaces and trunk

Guttate psoriasis produces small, drop-like lesions on the trunk and extensor surfaces. It commonly follows strep pharyngitis.

Difficulty: Medium Question 12 of 20

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