Noncardiogenic Pulmonary Edema. (a) Chest radiograph of a case of cardiogenic pulmonary edema showing cardiomegaly (black arrow) with fluffy air-space opacities in central as well as peripheral lungs (b) Chest radiograph of a case of noncardiogenic pulmonary edema showing batwing opacities (arrowheads) with air bronchogram and absence of cardiomegaly. Pulmonary edema - cardiogenic or noncardiogenic? Sureka B, Bansal K, Arora A - Journal of family medicine and primary care (2015 Apr-Jun). Not Altered. CC.