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LINEAR ATELECTASIS

Radiographs and CT. – Linear atelectasis is a focal area of subsegmental atelectasis with a linear configuration, almost always extending to the pleura.[100] It is commonly horizontal but sometimes oblique or vertical. The thickness of the atelectasis may range from a few millimeters to more than 1 cm (Fig. 33). Linear atelectasis is also referred to as discoid or platelike atelectasis.[100] (See also atelectasis.)

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