Occasional severe constipation is seen in ulcerative colitis patients with:
**Core Concept**
Ulcerative colitis is a type of inflammatory bowel disease (IBD) characterized by chronic inflammation and ulceration of the colonic mucosa. Patients with ulcerative colitis may experience various extraintestinal manifestations due to the systemic nature of the disease.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of ulcerative colitis. Chronic inflammation and immune system activation in ulcerative colitis can lead to the release of various cytokines and inflammatory mediators. One of the effects of this inflammation is the alteration of the gut motility and secretion. This can result in **paradoxical contraction** of the colon, leading to severe constipation in some patients.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not relevant to the pathophysiology of ulcerative colitis.
* **Option B:** This option is incorrect because it is not a known association with ulcerative colitis.
* **Option D:** This option is not a known extraintestinal manifestation of ulcerative colitis.
**Clinical Pearl / High-Yield Fact**
In ulcerative colitis, patients may experience a range of extraintestinal manifestations, including paradoxical contraction leading to severe constipation. This highlights the complex interplay between the immune system, gut motility, and inflammation in IBD.
**Correct Answer:** C.