Based on your description, this CT scan does not strongly suggest idiopathic pulmonary fibrosis (IPF), and if your pulmonologist has assessed it as mild, that is reassuring.
Next Steps
Continue the prescribed treatment and follow up with your pulmonologist, who may advise pulmonary function tests and repeat imaging only if symptoms persist or worsen.
Health Tips
Seek prompt medical review if she develops worsening breathlessness, persistent fever, significant weight loss, coughing up blood, or falling oxygen levels.