A Therapist Is Examining an AP Chest Radiograph of a Neonate

question 1

Multiple Choice

A therapist is examining an AP chest radiograph of a neonate and notices a structure projecting away from the mediastinum toward the right upper lung. This structure looks like a sail with a sharp inferior margin and lateral margins with wavy contours. Which of the following structures is the therapist observing?

• A) Thymus
• B) Right heart border
• C) Aortic notch
• D) Lymph node in the hilar region on the right

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