Multidetector computed tomography detection of perineural infiltration around the superior mesenteric artery in intrahepatic cholangiocarcinoma: A case report.

Intrahepatic cholangiocarcinoma (IHCC) is the second most common primary liver malignancy after hepatocellular carcinoma and is associated with a poor prognosis. Although surgical resection remains the only potentially curative treatment, the 5-year survival rate is <30%. Among various prognostic factors, perineural invasion (PNI) is considered noteworthy. Multidetector computed tomography (MDCT) plays a critical role in the diagnosis and staging of IHCC and may aid in the detection of PNI. The current study presents the clinical course and radiological findings of an 82-year-old woman with IHCC who showed PNI around the superior mesenteric artery, highlighting the importance of preoperative MDCT evaluation.