system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 36-year-old woman is brought to the emergency department after being involved in a motor vehicle collision. She is alert, awake, and oriented. There is no family history of serious illness and her only medication is an oral contraceptive. Her temperature is 37.3°C (99°F), pulse is 100/min, respirations are 20/min, and blood pressure is 102/80 mm Hg. Physical examination shows ecchymoses over the trunk and abdomen. A FAST scan of the abdomen is negative. An x-ray of the chest shows no fractures. A contrast-enhanced CT scan of the chest and abdomen is performed that shows a 4-cm sharply defined liver mass with a hypoattenuated central scar. Which of the following is the most appropriate next step in management?
assistant
Reassurance and observation