
M1 Mediastinum Summative Review Questions
Quiz by Jenny Ousley
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A 56-year-old man comes to the emergency department because of acute-onset chest pain. He describes a sensation of tearing. His pulse is 85/min, blood pressure is 170/102 mm Hg, and oxygen saturation 98% on room air. Physical examination reveals an interarm blood pressure differential of 25 mm Hg. The ECG is normal. An x-ray of the chest is shown. Which of the following is the most common etiology of this condition?

A 78-year-old patient presents with an advanced cancer in the posterior mediastinum. The surgeons are in a dilemma as to how to manage the condition. Which of the following structures is most likely damaged?
A 45-year-old woman presents with a tumor confined to the posterior mediastinum. This could result in compression of which of the following structures?
A 62-year-old patient with pericardial effusion comes to a local hospital for aspiration of pericardial fluid by pericardiocentesis. The needle is inserted into the pericardial cav- ity through which of the following intercostal spaces adjacent to the sternum?
A 27-year-old patient with Marfan syndrome has an aneurysm of the aortic arch. This may compress which of the following structures?
In the image below, structure C is which of the following?
