The anterior fontanel is slightly depressed. Tympanic membranes are normal in appearance. Nares are clear without congestion. The oral mucosa is slightly dry, pink and without exudates. Neck is supple without adenopathy or meningeal signs.
Chest is clear, with normal heart sounds.
Abdomen is soft nontender without palpable masses. However, serial physical exam reveals a visible mobile mass which traverses the abdomen in approximately one minute. The mobile mass recurs about every 3-5 minutes and is more pronounced after a feeding. Genitalia and extremities are normal. Skin shows no rash or cyanosis.