Rounded atelectasis due to asbestos exposure
On X-rays, rounded atelectasis appears as a round mass, which can easily be mistaken for a cancerous tumor.
Round atelectasis is frequently related to asbestos exposure since the fibers accumulated on the surface of the pleura can cause severe tissue scarring.
Extensive lung tissue scarring, which commonly develops within several decades after the person was exposed to asbestos, may result in round atelectasis – the collapse of an outer portion of the organ.
Pleural effusion and pleural thickening may also be present with this condition.