"lobar atelectasis: collapse of one or more lobes of a lung."
"low-level, homogenous echogenicity with few to no air bronchograms"
Expected headings
"Plain radiograph / CT"
"Direct signs of atelectasis"
"Indirect signs of atelectasis"
"Resorptive (obstructive) atelectasis"
"Linear (plate, discoid, subsegmental) atelectasis"
"Lung atelectasis (plural: atelectases) refers to lung collapse, which can be minor or profound and can be focal, lobar or multilobar depending on the cause."
"the three most common specific aetiologies of passive atelectasis are pleural effusion, pneumothorax and diaphragmatic abnormality"
"linear (a.k.a. plate, band, discoid) atelectasis: a minimal degree of collapse as seen in patients who are not taking deep breaths ("splinting"), such as postoperative patients or patients with rib fracture or pleuritic chest pain; this is very common"
"crowded air bronchograms (does not apply to all types of atelectasis; can be seen in subsegmental atelectasis due to small peripheral bronchi obstruction, usually by secretions; if the cause of the atelectasis is central bronchial obstruction, there will usually be no air bronchograms)"
"crowded air bronchograms (does not apply to all types of atelectasis; can be seen in subsegmental atelectasis due to small peripheral bronchi obstruction, usually by secretions; if the cause of the atelectasis is central bronchial obstruction, there will usually be no air bronchograms)"