Frontal Examination of the Lungs
Ashley Davidoff MD
Parts of the Lungs- Basics
Left Lung ? Left Upper Lobe ? Frontal Projection

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Frontal Projection Left Lower Lobe

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Right Lung ? Right Upper Lobe ? Frontal Projection

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Right Middle Lobe ? Frontal Projection

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Right Lower Lobe ? Frontal Projection

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Lateral Examination of the Lungs
Major Fissure on the Left

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Ashley Davidoff MD
Lateral Projection ? Left Upper Lobe

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Lateral Projection left Lower Lobe

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Major and Minor Fissures on the Right

The right lung has a small right upper lobe (RUL) separated from the middle lobe (RML) by the minor fissure (pink,lower image) . Both the RUL and RML are anterior and are separated from the lower lobe by the major fissure (orange line)
Ashley Davidoff MD

The right lung has a relatively small right upper lobe (RUL) separated from the middle lobe (RML) by the minor fissure (pink,lower image). Both the RUL and RML are anterior and are separated from the lower lobe by the major fissure (orange line)
Ashley Davidoff MD
Right Upper Lobe ? Lateral Projection

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Right Middle Lobe ? Lateral Projection

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Right Lower Lobe ? Lateral Projection

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Summary
CXR of LEFT LUNG
Ashley Davidoff MD

Ashley Davidoff MD
Trachea, Main Stem Bronchi, and Carina
NORMAL FRONTAL CXR NORMAL ASYMMETRIC BRANCHING OF MAINSTEM BRONCHI
The normal CXR shows the characteristic asymmetric branching of the main stem bronchi. The right is short and stout and slightly more vertical while the left is long and thin and slightly more obtuse.
The normal carinal angle is between 40-80 degrees.
Ashley Davidoff MD

CARINAL ANGLE ? 40-80 degrees
Ashley Davidoff MD

THE LEFT ? TALL THIN AND GRACILE
The carinal angle


http://www.wikiradiography.net/

Courtesy Radiopaedia
ET TUBE IN RIGHT MAIN STEM BRONCHUS
Courtesy Radiopaedia
References and Links