Hemithorax Westermark Sign Secondary to Complete Pulmonary Artery Occlusion from Pulmonary Embolus
- Resource Type
- article
- Authors
- Michael Louthan; Daniel Ng
- Source
- Clinical Practice and Cases in Emergency Medicine, Vol 5, Iss 2 (2021)
- Subject
- Medical emergencies. Critical care. Intensive care. First aid
RC86-88.9
- Language
- English
- ISSN
- 2474-252X
Case Presentation: We describe a complete right hemithorax Westermark sign found in a patient with a near-complete, right pulmonary artery trunk occlusion secondary to a pulmonary embolus. Discussion: We review the sensitivity and specificity of a Westermark sign in the identification of a pulmonary embolism, and how this aided us in managing our patient in the emergency department.