Neuroendocrine Tumour (NET) – don’t let it be a Crisis
Update February 2026. Before you read this, please note: Why Practice Is Changing Faster Than the Guidelines Modern peri‑operative management for neuroendocrine tumours is evolving rapidly, and several factors explain why clinical practice in some expert centres has moved ahead of formal guidelines: 1. New evidence challenges long‑held assumptions Recent surgical series — most prominently from OHSU Portland USA — show that prophylactic octreotide does not reliably prevent carcinoid crisis and that crises behave more like distributive shock, responding better to vasopressors than to somatostatin analogues. This directly contradicts decades of dogma. 2. Guidelines update slowly by design Bodies such…
The 5 E’s (of Carcinoid Syndrome)
The 5 Es was a good idea but the boundary was never properly defined. I don't believe it applies to all NETs (including patients) and I don't believe it is necessarily confined to carcinoid syndrome Original Post Since my diagnosis, I seem to have been in a perpetual learning phase! What not to do, what not to eat, what not to read! However, early on in my experience, I came across a list of 'E' words (5 of them) which is a handy reminder for Carcinoid Syndrome patients, particularly those whose symptoms are not under control. When I say "carcinoid…
Blood pressure – The NET Effect
Blood pressure (BP) is a commonly discussed subject in my private group of over 13,000 members. But when you look at the prevalence of elevated BP beyond nationally stated thresholds (hypertension), it's patently obvious that many people with a NET will have elevated BP issues regardless (see figures below). Nonetheless, patients often attempt to link it to NET, including when a diagnosis of NET comes after their hypertension diagnosis, although this is possible sequence in certain scenarios covered in this blog post. I also noted there were several causal sources of hypertension but with many other contributory factors. Correlation vs…
Clinical Trials – ONC201 for Neuroendocrine Cancer (including Pheo/Para)
What is ONC201?A company called Oncoceutics is developing a novel class of safe and effective cancer therapies called imipridones. Imipridones have a unique three-ring core structure and selectively target G protein-coupled receptors (GPCRs), the largest class of membrane receptors and a common target of approved drugs that are underexploited in oncology. Despite being historically uncommon as targets in oncology, GPCRs control an array of critical prosurvival and stress signaling pathways that are often dysregulated in human cancer to favor cancer cell survival and propagation.The ability of imipridones to target GPCRs with a high degree of selectivity represents a novel opportunity…
Neuroendocrine Tumours: a spotlight on Pheochromocytoma and Paraganglioma
Updated 19th August 2025 I spend a lot of time talking about the most common forms of Neuroendocrine Tumours (NETs), but what about the less well-known types? As part of my commitment to all types of NETs, I'd like to shine a light on two less common tumour types known as Pheochromocytomas and Paragangliomas - with an incidence rate of approximately 8 per million per year. They are normally grouped together, and the definitions below will confirm why. If you think it's difficult to diagnose a mainstream NET, this particular sub-type is a real challenge. So, let's get definitions out…