**Question:** All of the following are true for patients with ulcerative colitis associated with primary sclerosing cholangitis (PSC), Except

A. Increased risk of developing liver disease
B. Improved survival compared to isolated ulcerative colitis
C. Absence of colonic strictures
D. Lower risk of colorectal cancer

**Core Concept:** Ulcerative colitis (UC) associated with primary sclerosing cholangitis (PSC) is a rare condition characterized by the coexistence of these two inflammatory disorders. PSC is a cholestatic liver disease, while UC is a chronic inflammatory condition affecting the colon. The management of these patients involves a multidisciplinary approach involving gastroenterologists, hepatologists, and surgeons.

**Why the Correct Answer is Right:**

D. Lower risk of colorectal cancer is not true for UC patients with PSC. The presence of PSC increases the risk of colorectal cancer due to the combined effects of chronic inflammation and liver disease. This is because the inflammation and damage in the colon can lead to dysplasia and ultimately cancer.

**Why Each Wrong Option is Incorrect:**

A. Increased risk of developing liver disease is incorrect because PSC is the primary liver disease associated with UC patients, whereas the question states that PSC is not involved in the pathogenesis of UC. Thus, patients with UC and PSC do not have an increased risk of liver disease.

B. Improved survival compared to isolated ulcerative colitis is wrong. UC patients with PSC are at an increased risk for complications, including liver disease and colorectal cancer, which can negatively impact survival. In fact, the combined presence of UC and PSC can lead to poorer survival compared to patients with isolated UC or PSC.

C. Absence of colonic strictures is not relevant to the question, as it pertains to the clinical presentation of PSC but does not address the specific issue of UC patients with PSC.

**Clinical Pearl:**

In patients with UC and PSC, the management focuses on controlling UC symptoms, monitoring for liver disease progression, and managing liver-related complications. Screening for colorectal cancer is crucial due to the increased risk of colorectal cancer in these patients. Liver transplantation might be required in severe liver disease cases, while close monitoring of liver function tests and colorectal cancer screening are essential to manage the overall prognosis and improve survival.