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

Pulmonary nodules may be classified according to size (> 8 mm vs. ≤8 mm), attenuation (pure solid vs. part-solid), and distribution (solitary vs. multiple).

Classification

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

Size

• Nodules measuring >8 mm and < 30 mm in diameter
• Nodules measuring ≤8 mm in diameter

Attenuation

• Pure solid nodules
• Part-solid nodules

Distribution

• Solitary pulmonary nodule
• Multiple pulmonary nodules