system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Westermark's sign, Hampton's hump, Palla's sign are all features of which condition on chest X-ray
assistant
The correct answer is  A normal or nearly normal chest x-ray often occurs in PE. Well-established abnormalities include focal oligemia (Westermark's sign), a peripheral wedged-shaped density above the diaphragm (Hampton's hump), and an enlarged right descending pulmonary aery (Palla's sign).Harrison 19e pg: 1633