27th May 2025

A 67-year-old patient presenting with fatigue, hypotension, hyperkalaemia, and hyponatremia following sudden cessation of their steroids for polymyalgia rheumatica.

A 67-year-old patient presenting with fatigue, hypotension, hyperkalaemia, and hyponatremia following sudden cessation of their steroids for polymyalgia rheumatica. They are therefore given a diagnosis of secondary adrenal failure secondary to exogenous steroid withdrawal. Regarding differential diagnoses, which of the following is NOT a cause of secondary adrenal failure?

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