Last question answer  - Internal Acostic Meatus. The MRI demonstrates a right-sided vestibular schwannoma (acoustic neuroma) located at the internal acoustic meatus, which confirms this diagnosis. 

A 57-year old male is brought to the emergency department following a vague chest discomfort for 2 hrs. His ECG and the first set of cardiac enzymes are within normal limits. Vitals include a heart rate of 73/min, blood pressure 124/80 mmHg, and respiratory rate 16/min. His hypertension is controlled on ramipril, but he continues to smoke. This patient’s chest x-ray shows a widened mediastinal silhouette, increased aortic knob, and tracheal deviation. His chest X-ray is shown in the image below. Which of the following is related to the pathophysiology of his disorder?

1.Malignancy
2.Achalasia
3.Atherosclerosis
4.Hiatal hernia

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