Hepatoid adenocarcinoma is an extrahepatic tumor characterized by morphological similarities to hepatocellular carcinoma. Hepatoid adenocarcinoma of the stomach is a cancer with an extremely poor prognosis with few cases reported. Here, we describe a 75-year-old Spanish man referred to our hospital with a history of abdominal pain, general fatigue, anorexia and sickness. Initial study revealed ...

BACKGROUND Hepatoid adenocarcinoma (HAC) is a peculiar type of extrahepatic adenocarcinoma generally characterized by adenocarcinomatous and hepatocellular carcinoma (HCC)-like foci. Stomach is the most frequent site where hepatoid adenocarcinoma occurs, although it has been described in many other organs. On the other side, liposarcoma is a rare, malignant tumor that develops from fat cells. ...

Hepatoid carcinoma (HC) is an extremely rare form of neoplasm. Its cellular structure resembles that of a hepatocellular carcinoma (HCC). To date, only 26 cases of hepatoid carcinoma of the pancreas have been reported in the literature. We report the diagnosis of a hepatoid carcinoma of the pancreatic head in a 78-year-old male patient. The tumor was detected incidentally during routine abdomin...

Gastric adenocarcinoma is a rare entity in the pediatric population. Gastric hepatoid adenocarcinoma with elevated serum alpha-fetoprotein (AFP) is seen extremely rarely in children. A 12-year-old boy was admitted to the hospital with complaint of abdominal pain. X-ray revealed free air density below the diaphragm. Emergent laparotomy showed perforated stomach. Four weeks after the operation, h...

Hepatoid adenocarcinoma (HAC) is a unique type of extrahepatic that histologically mimics the appearance hepatocellular carcinoma (HCC). stomach has poor prognosis with increased potential for liver metastasis. HCC and HAC share clinicopathological immunohistochemical features. The diagnosis metastatic hepatoid to challenging. It often misdiagnosed as carcinoma. diagnostic dilemma more

Purpose To report a case of primary hepatoid adenocarcinoma of the orbit. Observations An adult patient was referred for evaluation of an orbital mass. Histopathology of the orbital biopsy indicated a carcinoma with hepatoid features. Laboratory studies revealed normal liver function tests, elevated serum alpha-fetoprotein, and whole-body positron emission tomography/computed tomography scan ...

Hepatocyte paraffin 1 (Hep Par 1) is a monoclonal antibody considered almost specific for normal and neoplastic hepatocytes, that can be used on formalin-fixed paraffin-embedded tissues. Hep Par 1 reactivity has been demonstrated consistently in hepatocellular carcinomas and hepatoblastomas but only rarely in cholangiocarcinomas and metastatic tumors to the liver. Although its role as a marker ...

Hepatoid carcinomas are tumors that display, at least focally, cytologic and/or architectural features of hepatocellular carcinoma. They have been described in several organs, most notably in the stomach and ovary. We report a case of hepatoid carcinoma of the pancreas that developed in a 41-year-old woman in association with a pancreatic endocrine carcinoma. The fine needle aspiration material...

Neoplasms commonly associated with alpha-fetoprotein (AFP) production are hepatocellular carcinomas and some germ cell tumors, typically yolk sac tumor. Rare tumors of visceral origin may also be associated with AFP production and those exhibiting a distinctive morphology are now known as hepatoid adenocarcinomas. To date, eight such tumors have been reported from the bladder and a further four...