Bubble trouble: Lung leakage leads to massive back bulge

A light bubbling could be heard on auscultation
Subcutaneous emphysema

A cancer patient has developed a huge bubble by his shoulder blade after two fistulas in his thoracic wall allowed air to escape into his back.

The 66-year-old man with lung adenocarcinoma presented to a hospital in Japan with worsening pain in his right back.