23rd September 2021

A 36-year-old male, who has recently arrived in the UK, presents to the emergency department with palpitations

A 36-year-old male, who has recently arrived in the UK, presents to the emergency department with palpitations. This had been ongoing for a few days. He also reports a neck lump as well as a persistent, productive cough, which had started the previous week. His past medical history includes asthma, for which he takes inhalers as required. There is no significant family history. He neither drinks alcohol nor smokes. On examination, he is pyrexial, has a palpable nodule in his neck, bilateral tremors, and gynaecomastia.

Which of the following is the most likely underlying diagnosis?

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