Pulmonary nodule classification

Pulmonary Nodule Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]

Overview

According to the Fleischner Society, solitary pulmonary nodules may be classified by size, distribution, and attenuation, into 5 categories: solid nodules measuring >8 mm in diameter, solid nodules measuring ≤8 mm in diameter, pure subsolid nodules, part-solid nodules, and multiple nodules.

Classification

Pulmonary nodules may be classified by size, attenuation, and distribution into the following:

Size

• Solid nodules measuring >8 mm and < 30 mm in diameter
• Solid nodules measuring ≤8 mm in diameter

===Attenuation

• Pure subsolid nodules
• Part-solid nodules

===Distribution

• Solitary pulmonary nodule
• Multiple pulmonary nodules