USMLE® Step 1 style questions USMLE
USMLE® Step 2 style questions USMLE
An 67-year-old woman comes to the office because of pain in her left arm and shoulder and unintentional weight loss. She also noticed that her left eye looks different. Examination shows anisocoria with left eye miosis, left ptosis, and left hemifacial anhidrosis. There is also a delay in the dilation of the left eye as opposed to the right eye when the light source is moved away. A firm, non-tender left supraclavicular adenopathy is noted. She has a 43 pack-year history of smoking, and is currently not on any medications. Which of the following is the most likely diagnosis?