Summary: Hao and Chris discuss the common diagnosis of CHF in the emergency department setting. The four most relevant radiographic findings are discussed. Important clinical and radiographic pitfalls are also considered. 1. Cardiomegaly 2. Pleural effusion 3. Interstitial edema 4. Airspace edema

Resources: The Radiologic Distinction of Cardiogenic and Noncardiogenic Edema Milne et al American Journal of Roentgenology, Vol 144, Issue 5, 879-894 https://www.ajronline.org/doi/pdf/10.2214/ajr.144.5.879

Use of chest radiography in the emergency diagnosis of acute congestive heart failure Mueller-Lenke et al. Heart 2006;92:695–696. doi: 10.1136/hrt.2005.074583 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1860911/pdf/695.pdf