Has anyone else been diagnosed with Psoriasis in the bowel?

Hi, I have suffered Psoriasis over my body for at least 22 years and diagnosed with Psoriatic Arthritis 11 years ago. 2 years ago I had a Colonoscopy which showed my bowel had turned purple! The samples taken were shown to be psoriatic tissue. I was told by the Dr that he had never come across it although he had heard this could happen as Psoriasis can "invert" and go anywhere in the dietry tract. I have a 7-8 year cycle of Psoriasis where it stays in one place for that amount of time before it appears somewhere else. My skin is clearer at the moment (it is still on my legs, back, elbow, ears, eyes and scalp) but it clearly has inverted. I was just wondering if anyone else has experienced this inverted Psoriasis?