A MOTHER BROUGHT HER 6-MONTH-OLD BOY in for a routine well-child check and asked that we look at a skin dimple in his right leg (FIGURE). The mother, who was a healthy 43-year-old, indicated that she hadn’t noticed the dimple until he was several weeks old, and since then it hadn’t changed significantly. She said that the dimple didn’t seem to bother him, and he was able to move all of his extremities without difficulty.
The baby was born by normal spontaneous vaginal delivery and was discharged from the hospital at 2 days of age. He’d had no significant illnesses, all of his immunizations were up to date, and he’d been meeting all of his development milestones. There were no family members with similar findings.
The baby was developmentally appropriate for his age and his physical exam was unremarkable, including his neurological exam. The only significant finding was a 2-mm circular dimple on the lateral aspect of his proximal right leg.
WHAT IS YOUR DIAGNOSIS?
HOW WOULD YOU TREAT THIS PATIENT?