A case of non-icteric early bile duct carcinoma

Abstract

A 74-year-old man was admitted to our hospital complaining of fever and slight liver dysfunction. US showed abnormal opacity in the upper bile duct. ERCP showed filling defect of the upper bile duct, suggesting a tumor. A tumor shadow of the same density as liver was seen on CT-cholangiography. PTBD and PTCS were performed to enable histological diagnosis. Injection of contrast medium performed 7 days after PTBD revealed that the tumor was markedly reduced in size. PTCS revealed an irregular and slightly elevated lesion with redness and bleeding. Biopsied specimens from the affected area showed adenocarcinoma. Pathological analysis after the surgery revealed that the remaining part of the tumor, measuring 10×15 mm, was papillary adenocarcinoma located in the mucosal layer. Patient has been in good health for over 2 years since the surgery.