Pulmonary Edema: Pulmonary edema is a redistribution of vascular fluid into the interstitium first, and then possibly the alveoli. The causes can be cardiogenic, renal failure, or due to respiratory conditions like ARDS.
Peribronchial Cuffing: Normal bronchi do not have the circumferential thickening depicted in the image below.
Pulmonary Edema – Peribronchial Cuffing