Ronny Allan’s Glossary of Terms (Basic Edition)
Welcome to my Neuroendocrine Cancer terms and definitions list providing a source of meanings for acronyms and medical terms, all sourced from top cancer/Neuroendocrine Cancer sites. This version is a simple combination of an intelligent search (e.g. type first character to filter etc) plus a simple long list of all the terms in my repository. But each has a link which will direct you to the definition of the term plus where applicable, links to any of my articles where I have tagged this term (therefore providing added context).Please note I’m constantly working on the repository to clean up all definitions, adding…
Trending on Ronny Allan
You guys lead busy lives but the aim of this article is to help you catch up. Below are the most read posts in the last 7 days. Click on anything that takes your fancy. Many thanks. To read any article, just click on the title/picture below Latest from Instagram https://www.instagram.com/neuroendocrine.cancer.ronny/ Select of category of posts you'd like to see Disclaimer I am not a doctor or any form of medical professional, practitioner or counsellor. None of the information on my website, or linked to my website(s), or conveyed by me on any social media or presentation, should be interpreted as…
Neuroendocrine Cancer: Nodes, Nodules, Lesions (and false alarms!)
A fairly common disposition of Neuroendocrine Neoplasms is a primary with associated local/regional secondary's (e.g. lymph nodes), and often with liver metastases. Technically speaking, the liver is distant. However, many metastatic patients appear to have additional and odd appearances in even more distant places, including (but not limited to) the extremities and the head & neck. Certain things are known about the behaviour of Neuroendocrine Neoplasms (NENs) (a term for Neuroendocrine Tumours and Neuroendocrine Carcinoma) and specialists will be analysing many factors when working out the type of NEN and how it might behave. This is useful in cases of…
Neuroendocrine Cancer: Not all answers are black and white
I get lots of questions. Some are direct to me by a messenger type app. Many are posed in my private group - these are normally always directed at the entire group but often I'm tagged in, a giant hint that I'm expected to reply. I don't mind too much but my answer is generally the same whichever scenario. Where I'm not tagged, I'm still happy to answer along with others in the same post. Sometimes I only comment as part of my moderating role in the group. In the early days, I would generally contribute to most posts but…
Ronny Allan – Every picture tells a story
I always try to use graphics for a number of pictures, I admit mainly to catch people's attention but also because sometimes a picture on its own tells a story or at least provides a great introduction to one. If the picture catches your eye, clicking on will take you to the text. This post will auto update as new blogs are published. thanks for reading and sharing! Scroll, point, click, read, share! Disclaimer I am not a doctor or any form of medical professional, practitioner or counsellor. None of the information on my website, or linked to my website(s),…
Living with Neuroendocrine Tumours – the 14 year itch
Following a diagnosis of metastatic small intestine NET in 2010, I wrote a blog in 2017 entitled "The 7 year itch". I thought I would re-release it having reached 14 years and almost 7 years since it was published. When I wrote it, I was inferring a link between Lanreotide and my ongoing leg itching. After some years, I also started to see correlations between itching and many other things including but not limited to the seasons of the year (i.e. it seemed to be worse in the winter). As another example, I also noticed itchy skin could be caused…
Pancreatic cysts – something or nothing?
What are cysts?Cysts are sacs or capsules that form in the skin or inside the body. They may contain fluid or semisolid material. Although cysts can appear anywhere in the body, most frequently they live in the skin, ovaries, breasts or kidneys. Most cysts are not cancerous.What are pancreatic cysts?Pancreatic cystic lesions are being found more frequently on cross-sectional imaging studies (e.g. conventional imaging such as CT/MRI/Ultrasound). Although many of these cysts are discovered incidentally in asymptomatic patients, many have a malignant potential. Coupled with the lack of a single diagnostic test for accurate risk stratification and the risks of…
Rosacea – the NET Effect
Around 2001, I started noticing some issues on my nose, particularly around the creases, an issue I still experience today. It normally starts with a stinging feeling, an indication I'm about to experience some sort of inflammation. What eventually happens is something which looks like a 'whitehead' which I now know to be a 'pustule'. Sometimes there are multiples, and most are not normally bigger than 2mm, mostly smaller. These pustules nearly always disappear within a short period of time, normally after washing/showering, but they tend to leave reddish marks which eventually fade. Very infrequently, these pustules would appear on…
Weight – the NET Effect
Foreword After my first surgery in November 2010, I came out at the lightest weight I had been for many many years (10st 7lbs (147lbs)). 6-7 weeks later I went back to work and people privately commented that I shouldn't be at work, I looked too frail and ill. Perhaps it was because my suit no longer fitted me properly! That was an expensive year because I had to buy new suits, a requirement of my employment. Fast forward 4 years, I had to buy some more suits as my weight was going back on. Fast forward 14 years and…
Hives (urticaria) The NET Effect
Background to why I created this blog post. For many years, I've read numerous comments and posts where people mention hives (full medical term urticaria). As far as I know, this is an issue that has never bothered me all of my life ...... until recently. I've never had any allergies other than certain cats and dogs (....I guess there might be a connection there). I'm currently taking an anti-histamine tablet each day until the issue resolves. My normal reaction to these changes is to research, so here is my research! The response in patient groups to questions about hives…
Serotonin – the NET effect
Background I'd never heard of Serotonin until I was diagnosed with Neuroendocrine Cancer in 2010. It is frequently discussed, often with contrasting views from the respondents. One common assumption/question is that it is responsible for many things that can go wrong with Neuroendocrine Tumour (NET) patients who have serotonin-producing tumours. To a certain extent, that's true but statement such as "it's the hormones" is an easy assumption to make; or an easy answer to give in response to a complex set of circumstances. It's difficult to get a definitive answer and the science behind the behaviour of our hormones isn't…
Diabetes – The NET Effect
Updated January 2026Originally published September 2018. My chest infection is now settled, as too is the excitement and apprehension behind my first ever Ga68 PET - the outcome of that is still a work in progress. Earlier this year, my thyroid 'lesion' on watch and wait was given a 'damping down' with the prescription of a thyroid hormone supplement but I await a re-ignition of that small bush fire downstream. Bubbling behind the scenes and clamouring for attention is the spiking of my blood glucose test results and I was very recently declared 'at risk' for diabetes with a score…
Alcohol – the NET Effect
Opinion. First published in January 2016. Social Media is currently full of 'Dry January' articles and of course many charities will benefit as people will be motivated if they are abstaining from alcohol for a good cause. Nothing wrong with that and no doubt some individuals will also see it as a way to cut down or at least lessen the effects of a very wet December! I've never been a big drinker but I do like the odd beer now and then. When I was diagnosed with metastatic Neuroendocrine Tumours (NETs), I hadn't really thought much about how this might affect my body. It…
Chocolate – the NET effect
I've always had a 'sweet tooth' and the softer the sweet the better - toffee, marshmallows, chocolate, jelly babies, jelly beans, fruit pastilles, fudge, liquorice allsorts, 'tablet' and macaroon bars (both from Scotland), are all on my list of favourites. In terms of desserts, I love those too - ice cream, cheese cake, meringue, cake, sponge with custard, the list is endless. And of course a hot drink isn't complete without a biscuit (or three....). Don't get me wrong, I'm not stuffing my face with sweet stuff 24/7, however I do need my sugar 'fix' now and then. I'm not a…
Histamine – NET or NOT?
Histamine is mentioned a lot in both patient groups and in literature as somehow connected with NETs, particularly with so called carcinoid syndrome (CS). In fact, various putative mediators, including serotonin, catecholamines, brady- and tachykinins, kallikrein, histamine, motilin, and prostaglandins, have been suggested as potential causative factors for the symptoms and complications associated with CS. It is generally believed that most of these tumour-derived secretory products are inactivated by hepatocytes and, therefore, only cause symptoms when they either bypass or are secreted outside of the portal vein drainage system. I wanted to focus on Histamine in this article. But what is the…
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 causation.…
Low FODMAPs – The NET Effect
Background Many people with NET have had issues prior to diagnosis and then continue to have similar issues after. For some it will be either one, i.e. no issues before but issues after or vice versa. However, it's even possible that some people have will have different issues after diagnosis than they had before, e.g. the side effects of the treatment will produce new problems for those people. In the early days, I once said to my Oncologist "I was never misdiagnosed with irritable bowel syndrome (IBS) but I sometimes feel like I have it now". IBS is said to…
GLP-1 receptor agonists (e.g. semaglutide) for adults with type 2 diabetes/weight loss – The Neuroendocrine Tumour (NET) Effect
Updated 24 Dec 2025 Novo Nordisk A/S: Wegovy® pill approved in the US as first oral GLP-1 for weight management Click here to read more Background This subject of semaglutide (e.g. Ozempic) is appearing regularly in my private Facebook group, and I can see there might be some confusion out there. But first, I wanted to state that this post is not about me saying semaglutide (or whatever brand names are included in this post) is something you should be taking or not. That is the responsibility of your doctors, in conjunction with you, the patient. Nor is this post to…
Fructose intolerance – the NET Effect
Background When I cast my mind back to my very first surgery, I remember all sorts of 'plumbing' issues but was told it would take a while for my adjusted plumbing to repair and do its work once more. It's not gone fully back to normal, but I accept minor side effects of getting rid of cancer (metastatic with small intestine NET primary). My diet is slightly different nowadays as I endeavour to return to that normality, and I have a good handle on what makes me move faster AND slower. Constipation is not good either, so I try to find a…
Lactose intolerance – the NET Effect
Background When I cast my mind back to my very first surgery, I remember asking my Oncologist what I could do to put on weight. He said to drink full-fat milk. I was compliant in those days without reverting to Dr Google. Anyway, I did put on weight but perhaps the milk played a small part in that, and I eventually returned to semi-skimmed which I continue to use today (12 years on). My breakfast regime in the last 12 years since that surgery contains regular semi-skimmed milk and my many cups of tea have the same milk added. …
Cancer-related fatigue (CRF) – The NET Effect
In my patient support group of almost 10,000+, fatigue is very commonly discussed, and it certainly gets bags of empathy from the readers. I remember being really tired in the first few years after my diagnosis and in the years preceding it. As I was very focused on my work in those days, I was putting it down to the rigours of my working practices, commuting, overnighting, and working far too many hours in a day. In 2010, my diagnosis was triggered by symptoms of iron deficiency anaemia which was almost certainly connected to my cancer and feelings of fatigue for…
Paraneoplastic Syndromes – the NET Effect
Although several hypotheses have been proposed regarding the pathogenesis of Paraneoplastic Syndromes (PNS), the precise mechanism that leads to the development of PNS remains largely unknown. In simple terms, pathogenesis means "the manner of development of a disease". Disclaimer. I read widely and noted various papers where there was clearly confusion about the classification of paraneoplastic in relation to Neuroendocrine Neoplasms. Some papers grouped known Neuroendocrine Tumour hormonal syndromes in, but others were more specific by filtering these into ectopic scenarios. I eventually filtered out papers based on the expertise of the authors and the common threads running in each…
Proton Pump Inhibitors (…..and H2 Blockers) the NET Effect
What are Proton pump inhibitors (PPIs)? Proton pump inhibitors (PPIs) are among the most commonly used medications in the world. They reduce the production of acid by blocking the enzyme in the wall of the stomach that produces acid. Acid is necessary for the formation of most ulcers in the oesophagus, stomach, and duodenum, and the reduction of acid with PPIs prevents ulcers and allows any ulcers that exist in the oesophagus, stomach, and duodenum to heal. PPIs are prescribed to treat acid-related conditions such as: Esophageal, duodenal and stomach ulcers NSAID-associated ulcer Ulcers Gastroesophageal reflux disease (GERD) Zollinger-Ellison Syndrome…