Hepatic hemangioma in a simple liver cyst mimicking biliary cystic neoplasm.

Background: Follow-up is recommended for an asymptomatic unilocular hepatic cystic lesion without wall-thickness and nodular components. A few liver cystic lesions represent biliary cystic neoplasms, which are difficult to differentiate from simple cysts with benign mural nodules on imaging alone.

Case Presentation: An 84-year-old woman with a history of simple liver cyst diagnosed one year prior was admitted for evaluation of a developed mural nodule in the cystic lesion.

A Laparoscopically Treated Case of Peritoneal Dissemination Mimicking Liver Metastases from Distal Cholangiocarcinoma Four Years After the Initial Pancreaticoduodenectomy.

Background/aim: Operable peritoneal dissemination from distal cholangiocarcinoma after pancreaticoduodenectomy is rare. Furthermore, peritoneal dissemination mimicking liver metastasis has scarcely been reported.

Case Report: An 81-year-old woman received pancreaticoduodenectomy for distal cholangiocarcinoma.

Laparoscopic Surgery for a Patient With Multiple Liver Metastases of Unknown Origin Concomitant With Gallbladder Tumor.

Background: The liver is the digestive organ where metastatic adenocarcinoma of unknown primary site is most often observed.

Case Report: A 74-year-old man was diagnosed with a growing gallbladder tumor and multiple liver tumors limited to the left lateral sector. Liver tumors were suggested to be primary or secondary adenocarcinoma with no relation to the gallbladder tumor.

Hepatic Inflammatory Pseudotumor Mimicking Malignant Tumor With Rare Onset of Intra-abdominal Hemorrhage.

Background: Hepatic inflammatory pseudotumor (HIPT) is an uncommon benign tumor-like mass that mimics malignant tumors.

Case Report: A 73-year-old man was admitted with severe epigastric pain and high fever. He had received choledocojejunostomy.

Cholangiolocarcinoma With Multiple Recurrences Successfully Treated With Repeated Liver Resection and Radiofrequency Ablation.

Background/aim: The prognosis of cholangiolocarcinoma, a rare malignant liver tumor derived from hepatic progenitor or stem cells, is considered relatively good; however, it frequently recurs. We herein present the diagnosis, histological findings, and treatment of cholangiolocarcinoma.

Case Report: A 65-year-old woman with a large liver tumor (70 mm in diameter) was referred.

Hepatocellular Carcinoma With Extensive Cancer-associated Thrombosis Successfully Treated With Liver Resection and Direct Oral Anticoagulant: A Case Report.

Aim: To assess the utility of the perioperative use of direct oral anticoagulants for patients with hepatocellular carcinoma (HCC) with cancer-associated thrombosis.

Case Report: An 83-year-old woman was admitted with a solitary HCC (10-cm diameter), as well as with multiple sites of venous thromboembolism and macroscopic portal vein tumor thrombosis. She had appropriate liver function without viral hepatitis, triple-positive tumor markers, and secondary polycythemia.

Complete Removal of Adrenal Metastasis in Hepatocellular Carcinoma Using Indocyanine Green Fluorescent Imaging.

Aim: Our aim was to confirm the utility of Indocyanine green (ICG) fluorescence imaging for intraoperative detection of adrenal hepatocellular carcinoma (HCC) metastasis.

Case Report: An 83-year-old man with a right adrenal HCC metastasis was admitted after complete remission of primary HCC and a metachronous left adrenal metastasis. He was treated with ICG fluorescence-guided limited resection to preserve adrenal function.

Hepatic Xanthogranuloma that Originated from a Liver Cyst and Mimicked a Malignant Tumor.

Background/aim: Hepatic xanthogranuloma is a very rale disease and formation process is unknown.

Case Report: A 69-year-old woman previously diagnosed as simple liver cyst. Two years before, a 36-mm liver cyst was found in segment 5, while one year later, the hemorrhagic cyst was 40 mm in diameter and a thin septum had formed.

Conversion Hepatectomy for Huge Hepatocellular Carcinoma With Arterioportal Shunt After Chemoembolization and Lenvatinib Therapy.

Large tumor size and arterioportal shunt are poor prognostic factors for hepatocellular carcinoma. Lenvatinib is a novel and potent multi-tyrosine kinase inhibitor developed in Japan. A 66-year-old woman with hepatocellular carcinoma and untreated hepatitis C was referred to our hospital.