Southern District Health Board chairman Dave Cull has announced he is stepping down as he faces an "ominous health challenge".
Former Dunedin Mayor Cull shared the news today.
"I have recently been diagnosed with a tumour on my pancreas.
"I need to undergo further tests to give more clarity as to type, treatment and prognosis.
"However regardless of what those reveal, it is clear that henceforth I will need to devote 100% of my energy to confronting this ominous health challenge and supporting my whānau.