Intrahepatic mass-forming cholangiocarcinoma growing in a gi
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Hepatic hemangioma (HH) is a common benign tumor with a high number of normal or abnormal blood vessels. Intrahepatic cholangiocarcinoma (ICC) is a relatively common malignant primary hepatic carcinoma (10%–15%) with high incidence rate and high fatality, yet low discovery rate in the early stages. Ultrasonography (US), computed tomography, and magnetic resonance imaging (MRI) are frequently used and indispensable imaging techniques for the diagnosis of hepatic lesions. It is possible to differentiate a liver lesion from HH with high accuracy owing to their different patterns and hemodynamic characteristics.

A 59-year-old Asian woman was referred to hospital for a hepatic mass, which was 9.0 × 6.5 cm in size, The patient was tested positive for hepatitis B antigen but negative for serum alpha-fetoprotein and carbohydrate antigen 199 and had a slightly elevated carcinoembryonic antigen level (3.56 ng/ml).

Liver US and MRI were performed. Grey-scale US revealed a huge heterogeneous mass on the right lobe with a point and line-like blood flow signal on Doppler US. Dynamic contrast-enhanced MRI showed heterogeneous annular nodular enhancement in the arterial phase. An initial diagnosis of HH was made based on the clinical history and imaging results; however, histopathologic examination of the liver lesions revealed modest to severe atypical hyperplasia of intrahepatic bile duct epithelium, cancerization, and mid to high differentiated mass-forming type cholangiocarcinoma combined with focal organized hemangioma.

The intrahepatic mass-forming cholangiocarcinoma (IMCC) lesion was considered a focal organization of hemangioma during operation and was surgically removed. No routine chemotherapy was performed after the operation. The IMCC recurred 23 months after surgery, with elevated serum CA19-9 and CA125. Liver damage was evident, and the patient developed jaundice. The patient was discharged without active treatment and died in 4 months.

Source: Medicine: July 2019 - Volume 98 - Issue 27 - p e16410

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