Hm, I was also diagnosed with redundant colon and my colon had Mac Donald shape like Athene described. I had suffered from horrible constipation almost since my birth and I had tried everything on earth to cure this with no success. When I was twenty I had appendectomy and the surgeon told me my colon was too long, so I will suffer from this condition all my life.
When I was thirty I took round of antibiotics for several weeks for another health problem and during this course I felt lots of pain in my colon and felt lots of strange movements. During this time my constipation miracuously dissapeared and has never returned. It has been 7 years now. So I am very reluctant to believe such diagnosis. How do they measure proper lenght of colon? Do they judge from findings at necroscopies or how?
I think if we have infected large nerve centre in our stomach it can cause all kind of problems with gut and colon.Our colon is full of nerves and if they do not work properly we can have tension, stenosis, changes in shape, whatever you want.
My redundant colon was diagnosed in a colonoscopy.
The standard tube thingy that they stick up you for a colonoscopy (sorry can't remember the word right now) is 3 metres long (9 feet). A normal adult colon is about 6 feet long (2 metres). After my 7 colonoscopies they have always said - with rather amazed faces - that my colon is over 9 feet long so they could not make it all the way to the ileo-cecal valve.
KDM said that the vast majority of CFS patients have pain and leakage of the ileo-cecal valve. That is supposed to be a one-way valve that stops fecal matter in the large intestine going backwards into the small intestine and carrying bacteria with it. There are supposed to be very few bacteria in the small intestine. When your immune system works properly it does nearly all its work there - 80 percent to 90 percent of the active immune cells in a human are all working on the intestine to maintain the right balance of bacteria and other residents there.
For my last colonoscopy I told them my intestine is very long and I really needed them to check the ileo-cecal valve so they used an extra long cable thing. This time it was Sicilians not English doctors, so they were far more talkative!
(Sorry this is so gross, it always makes me think of that episode of Southpark where Cartman is abducted by aliens and given an anal probe. If you're sqeamish, STOP reading now). They told me this time that it had been incredibly difficult to get the thing up me because my intestine is not only ridiculously long but also amazingly mobile. They said to maneuver it round the corners they had one doctor "literally putting his hands on my abdomen to manipulate the hose to the right angle inside" me while the other one "shoved from behind".
After my pregnancy I had ludicrously slack abdominal muscles and when I got gas, I could literally lie on my back and see my intestine writhing about inside me like a live serpent. It would arch over making a bulge in my abdomen, then slip down the opposite side of my tummy. I asked my husband to watch this as I thought I was hallucinating!
At that time I felt a lot better wearing a very tight corset that went from hip level to just under my bust. (You have to wear those after a cesarian as your abdominal muscles don't work and it feels as if your entrails are about to spill on the floor when you stand up). I find tight waistbands unbearably painful but this applied even pressure and to my surprise, made my tummy feel and function a lot better.
Reflecting on what Hiberia has said, I think that using this to keep my intestine pretty much strapped down in place prevented me from getting constant little twists and blockages in the intestine. I've started paying attention to my posture since Hibernia said slouching can cause gut problems and even thyroid problems (I do have a hypothyroid condition). I am a terrible sloucher and it only gets worse wehen my CFS is bad and all my muscles are tired. Today I made a huge effort to stand up well and my guts were far less bloated than normal. Thn I betn over to tidy up my son's bedroom floor that was strewn with toys, and hey presto! I look pregnant as usual.
I've decided to try wearing a kind of truss for a while, strapping it all in, and seeing how it behaves.
This article says redundant colon can result from long term constipation, as this elongates the longitudinal muscles. This relates to slow intestinal transit.
http://jp.physoc.org/content/588/18/3343.full
In my case I think the long colon must be congenital as I have had a lifetime of atrocious diarrhoea.
When I first startd antibiotics for lyme I got such spectacular pain in my gut that I was unable to stand fully upright for over a week. Dr N at the BCA was very worried as I seemed to be having a monster herx but he was worried I might be having some other problem as he had never seen a patient with such terrible tummy problems.
Strangely enough, since my 18 months of antibiotics I have diarrhoea no more, and now I am prone to getting constipated instead. This could either be because antibiotics and high-potency probiotics have made major changes in my intestine flora. Or it could be that the antibiotics have specifically killed off lots of lyme bacteria (or bartonella which also loves to ruin people's guts), which I have just learned causes a wide range or neurological problems in the intestine.
There's a very good article here describing lyme-related intestinal paralysis and other neurological abnormality called "Bell's palsy of the gut."
http://www.ilads.org/lyme_research/lyme_publications14.html
So anyway, that's all the long way of saying, I definitely have neurologial issues, but I know for sure the elongated and hyper mobile colon is also part of my situation.