25th August 2020

A 61-year-old man presents to endocrinology clinic, having been referred by his GP for management of resistant hypertension

A 61-year-old man presents to endocrinology clinic, having been referred by his GP for management of resistant hypertension. His blood pressure in clinic is measured at 190/120 mmHg. He describes having had several episodes in which he has incredibly severe headaches, which make him feel dizzy and panicked, and cause him to become very sweaty and flushed. His GP thinks these headaches are related to his high blood pressure.

For the case above, please select the SINGLE most likely cause of the condition described. Select ONE option from the list above.