Incidental Small Pulmonary Nodules On CT

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Radiology Nov 2005

Recommendations for Follow-up & Management of Small Nodules Detected Incidentally at Nonscreening CT

Nodule size: Average of length & width

Low-Risk Patient: (Minimal or absent smoking history and other known risk factors)

High-Risk Patient: (History of smoking or of other known risk factors)


Low Risk Patient

High Risk Patient

Non-solid (ground glass) or partly solid nodules may require longer follow-up to exclude indolent adenocarcinoma

In the case of nodules larger than 8 mm, additional options such as contrast material–enhanced CT, positron emission tomography (PET), percutaneous needle biopsy, and thoracoscopic resection can be considered