Surgical problems in primary sclerosing cholangitis

Area of Science:

• Gastroenterology and Hepatology
• Pathology

Background:

• Primary sclerosing cholangitis (PSC) is characterized by diffuse inflammation, fibrous thickening, and narrowing of the biliary ducts.
• Exclusion criteria are crucial, particularly ruling out patients with gallstones or prior biliary surgery to avoid misdiagnosis of traumatic stenosis.

Observation:

• Two cases illustrate the strict diagnostic criteria for PSC.
• One case presented with biliary stenosis mimicking stone passage, yet had a good prognosis.
• Another case, initially appearing typical, rapidly progressed to biliary duct cancer.
• A third patient with cirrhosis and extrahepatic stenosis was correctly diagnosed through histologic studies, cholangiolitis, and obstructive pericholangiolitis.

Findings:

• PSC typically progresses from angiocholitis attacks to permanent jaundice and ultimately biliary cirrhosis.
• Histopathologic changes include fibrous rings constricting interlobular ducts.
• Physiopathology is complex, though clearer in cases with coexistent ulcerative colitis (affecting one-third of patients).

Implications:

• The diagnosis of PSC is often difficult, requiring careful evaluation of clinical, radiological, and histological findings.
• Despite treatment with corticosteroids, the disease usually proves fatal within four years of onset.
• Accurate diagnosis is critical for appropriate patient management and prognosis, distinguishing PSC from other biliary conditions like cancer.