29th October 2020

A 47-year-old woman presents to her GP. Her right pupil is constricted

A 47-year-old woman presents to her GP. Her right pupil is constricted, and she has slight ptosis of her right eye. She also complains of malaise, fatigue, and unintended weight loss. Her GP books her for a chest X-ray which is shown below (P marks the pathology). What is the most likely cause for her symptoms?

Select the SINGLE most appropriate option from the list below. Select ONE option only.