Radiology Which of the following describes the Westermark sign in Pulmonary Thromboembolism? A Peripheral Wedge shaped infarct B Pulmonary Oligemia C Prominence of Main Pulmonary Aery D Prominence of Descending Rt Pulmonary aery 💡 Explanation Which of the following describes the Westermark sign in Pulmonary Thromboembolism? ✓ Correct Answer: B. Pulmonary Oligemia