If you see the contusion, there is no pneumothorax.
Soldati
Gino
G
Sher
Sara
S
Copetti
Roberto
R
D003288:Contusions / Q000000981:diagnostic imaging*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D011030:Pneumothorax / Q000000981:diagnostic imaging*; D014463:Ultrasonography