The American Society of Dermatopathology

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Interactive Case Study - October 2020

Infant with a papular rash

Carli P. Whittington, MD; Laura A. Greene, MD

Question 1:

A healthy 7-month-old male infant presented with persistent red and white “pimples” that developed at 6 months of age. Physical exam revealed a folliculocentric papulopustular eruption involving the scalp, face, axillae, back, and groin. A biopsy was performed.

Figure A.

Figure B.

Figure C.

Which of the following is the best diagnosis?