Which radiographic description is commonly described in pulmonary edema?

• A. Batwing
• B. Kerley B lines
• C. Fluffy edema
• D. Patchy infiltrates

Answer: (C)

Pulmonary edema shows fluid accumulating in the interstitium and airspaces, which on chest radiographs appears as diffuse, ill-defined, hazy opacities across the lungs. The term “fluffy edema” describes this widespread, indistinct, cloud-like pattern that reflects edema fluid filling many lung regions, not just a single area. This makes it a better overall descriptor of edema on radiographs than more localized signs. While Kerley B lines indicate interstitial edema and a bat-wing pattern points to perihilar edema, the fluffy, diffuse appearance captures the general edema picture most commonly seen with cardiogenic fluid overload. Patchy infiltrates, by contrast, are less specific and can suggest infection.