Radiographic imaging findings of pneumothorax

What are the radiographic imaging findings of pneumothorax?

The pathognomonic finding is a thin, sharply defined, visceral pleural “white” line between radiolucent lung (with vascular markings) and radiolucent “black” free gas in the peripheral pleural space (without vascular markings). On supine chest radiography, one may see sharp visualization of the right cardiac border, superior and inferior vena cavae, left subclavian artery, and anterior junction line; a deep lucent cardiophrenic sulcus (“deep sulcus” sign); hyperlucency at the lung bases; and associated atelectasis of the adjacent lung.

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