Guglielmo M. Trovato, MD; Marco Sperandeo, MD; Daniela Catalano, MD
Potential Conflicts of Interest: Drs. Trovato and Catalano: Employment: University Hospital of Catania. Dr. Sperandeo: Employment: Hospital Casa Sollievo della Sofferenza IRCSS.
Trovato G., Sperandeo M., Catalano D.; Computed Tomography Screening for Lung Cancer. Ann Intern Med. 2013;159:155. doi: 10.7326/0003-4819-159-2-201307160-00016
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Published: Ann Intern Med. 2013;159(2):155.
TO THE EDITOR:
Henschke and colleagues (1) suggest that a threshold of 7.0 or 8.0 mm to define positive results in the baseline round of computed tomography (CT) screening for lung cancer could decrease further work-up and a delay in diagnosis in some patients. Although nodule size is important, it is not the sole predictor of risk for cancer (2). In our experience, 70% of the pleural surface is accessible by transthoracic ultrasonography when the lung comes up to the pleura or is reachable via a sound window. Contrast-enhanced ultrasonography provides further information.
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