Also known as post-obstructive pulmonary edema
Forced inspiration against obstructed airway causes large<unk>  intrathoracic<unk> , leading to pulmonary edema
Mostly due to postoperative laryngospasm, sudden drops in PEEP (high PEEP to manual BVM), trauma such as hanging, strangulation, foreign bodies, etc.
The<unk><unk>  causes hydrostatic edema that can be life-threatening if not but minimized if treated early, usually resolves after 24-48 hours. 
Patients have an airway obstructive process either from an allergy, laryngospasm, trauma, and commonly in the case of hangings.
Negative pressure pulmonary edema
Pulmonary capillary wedge pressure <18 mmHg differentiates noncardiogenic from cardiogenic pulmonary edema[4]
Immersion pulmonary edema
Cardiogenic pulmonary edema
Reexpansion pulmonary edema
Noncardiogenic pulmonary edema
Flash pulmonary edema
Arterial gas embolism