Hampton's hump on chest radiograph represents what?

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Study for the Pulmonary Emergencies Test. Improve your skills with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Hampton's hump on chest radiograph represents what?

Explanation:
Hampton's hump represents a peripheral pulmonary infarct from a pulmonary embolism. The finding is a wedge-shaped opacity at the lung periphery, with the base against the pleura and the apex toward the hilum, reflecting ischemia and hemorrhagic infarction in a distal pulmonary artery branch. This is why the best description is a wedge-shaped peripheral opacity due to pulmonary infarct. The other patterns—diffuse interstitial edema (diffuse, perihilar markings), pleural effusion (meniscus with fluid layering), or atelectasis of the lower lobe (basilar, volume-loss opacity)—don’t match the characteristic pleural-based wedge seen with infarction.

Hampton's hump represents a peripheral pulmonary infarct from a pulmonary embolism. The finding is a wedge-shaped opacity at the lung periphery, with the base against the pleura and the apex toward the hilum, reflecting ischemia and hemorrhagic infarction in a distal pulmonary artery branch. This is why the best description is a wedge-shaped peripheral opacity due to pulmonary infarct. The other patterns—diffuse interstitial edema (diffuse, perihilar markings), pleural effusion (meniscus with fluid layering), or atelectasis of the lower lobe (basilar, volume-loss opacity)—don’t match the characteristic pleural-based wedge seen with infarction.

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