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Table 2 The Fleischner society recommendations for the follow-up and management of solid pulmonary nodules smaller than 8 mm detected incidentally in persons 35 years of age or older – adapted from reference [50]

From: Extra-cardiac findings in cardiovascular magnetic resonance: what the imaging cardiologist needs to know

Nodule size: ≤ 4 mm
 • Low riska : No follow-up
 • High riskb : Follow-up CT at 12 months and if no change, no further follow-up required
 
Nodule size: >4 – 6 mm
 • Low riska : Follow-up CT at 12 months and if no change, no further follow-up required
 • High riskb : Initial follow-up CT at 6–12 months and then at 18–24 months if no change
 
Nodule size: >6 – 8 mm
 • Low riska : Initial follow-up CT at 6–12 months and then at 18–24 months if no change
 • High riskb : Initial follow-up CT at 3–6 months and then at 9–12 and 24 months if no change
 
Nodule size: >8 mm
 • Follow-up CTs at around 3, 9 and 24 months
 or
 • Dynamic contrast enhanced CT, PET-CT, and/or biopsy
 
  1. aLow risk patients: minimal or absent history of smoking and / or other know risk factors
  2. bHigh risk patients: history of smoking or other known risk factors