Early venous return in hepatic angiomyolipoma due to an intratumoral structure resembling an arteriovenous fistula.

Early venous return (EVR) is an important radiological feature of hepatic angiomyolipoma (HAML) that can aid in differential diagnosis, but the pathogenic mechanisms of EVR have yet to be elucidated. We present the first HAML case for which a probable mechanism for EVR is described. The patient was a 46-year-old woman, who had a growing 6-cm tumor with EVR in segment 3 of the liver as revealed by dynamic contrast-enhanced computed tomography.

Macrophage-capping protein as a tissue biomarker for prediction of response to gemcitabine treatment and prognosis in cholangiocarcinoma.

Cholangiocarcinoma is one of the deadliest malignancies worldwide. Recent studies reported that treatment with gemcitabine was effective in prolonging survival. However, as the treatment only benefited a limited subset of patients, selection of patients before treatment is required.