Pneumothorax chest x ray

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Chest X Ray

In a supine chest X-ray the deep sulcus sign is diagnostic, which is characterized by a low lateral costophrenic angle on the affected side. In layman's terms, the place where rib and diaphragm meet appears lower on an X-ray with a deep sulcus sign and suggests the diagnosis of pneumothorax. Images shown below are courtesy of RadsWiki and copylefted

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  Inspiration film

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  PTX is accentuated on expiration film

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  Acute desaturation

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  Acute desaturation

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  Right deep sulcus sign