What is the role of positron emission tomography (PET) in the diagnosis of cholangiocarcinoma (CCC)?

Updated: Dec 28, 2019
  • Author: Peter E Darwin, MD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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Answer

In preliminary evaluations, positron emission tomography (PET) has shown promise in diagnosing underlying PSC. [21] Small lesions (ie, < 1 cm) have been demonstrated. PET is accurate for detecting nodular carcinomas, but the sensitivity diminishes for infiltrating lesions. PET should be interpreted with caution in patients with PSC and stents in place. PET/CT has been shown to be valuable in detecting unsuspected distant metastases. [22]


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