Xray in Lung Collapse 

Lung collapse is a common finding in radiology. Subtle signs are seen in xray, which might be difficult to identify in an Xray. Collapse or atelectasis may be partial or complete. Collapse may be complete lung collapse, partial collapse or lobar , segmental and subsegmental collapse.
Time-codes-
0:00- Introduction.
1:05- Complete lung collapse
1:31- Causes of lung collapse.
2:39- Mechanism and features of complete lung collapse.
4:12- Lobar collapse.
5:36- Silhouette sign.
8:15- Segmental collapse.
For further information, go to -
theradioclinics.com/How_to_di...
For further learning, you may go through the following book-
www.amazon.com/Interpretation...
Case courtesy of Dr Henry Knipe, Radiopaedia.org, rID: 31087
Case courtesy of Dr Yusra Sheikh, Radiopaedia.org, rID: 45715
Case courtesy of Dr Ian Bickle, Radiopaedia.org, rID: 50329