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
Which of the following is not a pa of left mediastinal border on a PA chest radiograph?
assistant
The correct answer is  - The Left Hea Border on CXR is formed by Aoic Knuckle, Pulmonary aery, Left Auricle, and Left Ventricle. - The Right Hea Border on CXR is formed by Superior Vena cava, Rt Atrium and Inferior Venacava.