HPI: A 5 month-old healthy Caucasian male infant presented with a pink lesion on his umbilicus after sloughing of the umbilical stump, which occasionally drained small amount of fluid. Otherwise, it was asymptomatic. A shave biopsy of the tissue was obtained.
Past Medical History: none
Family History: none
Social History: none
Physical Exam: A red-pink moist round papule at the umbilicus (Fig1).