Hepatoid Adenocarcinoma of the Urachus (original) (raw)
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Cancer, 1994
A tumor mass resected from the anterior bladder wall of a 68-year-old woman displayed unusual histologic features: sheets of hepatoid cells merging focally with a secondary glandular pattern of adenocarcinoma. Intracytoplasmic hyaline globules and bile production within the solid areas supported the impression of hepatocytic differentiation. Immunoreactivity for alpha-fetoprotein (AFP) and alpha-1-antitrypsin and a striking canalicular immunostaining pattern for carcinoembryonic antigen and epithelial membrane antigen all indicate hepatocellular differentiation within this bladder tumor. This represents a case of a hepatoid adenocarcinoma located in the urinary bladder. The use of the term "hepatoid" in the literature is reviewed and the reported cases are grouped into two distinct categories of tumors: (1) germ cell tumors with focal hepatoid areas and (2) true hepatoid adenocarcinomas that meet histologic and immunohistochemical criteria for hepatocellular differentiation. AFP-producing tumors without any other feature of hepatocellular differentiation should not be considered as hepatoid tumors. This classification of hepatoid tumors is likely to be important in elucidating the histogenesis and clinicopathologic features of these unusual neoplasms. Cancer 1994; 733919-25.
Hepatoid adenocarcinoma of the urinary bladder
Virchows Archiv, 1999
A new case of hepatoid adenocarcinoma was diagnosed in fragments obtained at transurethral resection (TUR) from a 71-year-old man who had complained of haematuria. The tumour was composed of trabeculae and small solid nests of polygonal atypical cells simulating hepatocarcinoma, together with glandular areas of an otherwise typical adenocarcinoma. Immunohistochemistry showed cytoplasmic reactivity to AFP, AAT, albumin and CAM 5.2. Membrane reactivity was seen in EMA immunostaining, and there was also positivity to polyclonal CEA following a canalicular pattern. Immunoperoxidase studies of hepatocyte growth factor (HGF) and its receptor, c-met, were positive. Their expression may be related to the aggressive behaviour of this tumour.
Case Report of an Hepatoid Adenocarcinoma of the Stomach
SUMMARY CASE REPORT OF AN HEPATOID ADENOCARCINOMA OF THE STOMACH Hepatoid adenocarcinoma (HAC) is a rare but important type of extrahepatic tumour that has a morphologic similarity to hepatocellular carcinoma, with production of Alpha-fetoprotein (AFP) in high amounts and a poor prognosis. Stomach is one of the organs in which HAC has been most commonly identified. We report a case of an old man with a polypoid mass in the prepyloric region. The microscopical aspects were suggestive for an undifferentiated adenocarcinoma, but the positive immunohistochemical staining for AFP, alpha-1-antitrypsin, alpha-1-antichymotripsine and HepPar1 were crucial for the final diagnosis of hepatoid adenocarcinoma of the stomach (HAS). Because of the poor prognosis for this type of tumour, correct and early stage diagnosis of hepatoid adenocarcinoma is essential and long-term follow-up is required.
Hepatoid adenocarcinoma of stomach: Case report of a rare histological variant
Indian Journal of Pathology and Microbiology, 2014
Hepatoid adenocarcinoma of the stomach is a rare type of gastric carcinoma with an extremely poor prognosis. We describe a 72year-old man who underwent esophagogastroduodenoscopy which revealed 50 mm exulcerated lesion with a central necrosis on the lesser curvature and the posterior wall of the body of the stomach. Gastric biopsy revealed a poorly differentiated (anaplastic) adenocarcinoma. The serum level of alpha-fetoprotein (AFP) was (3220 ng/mL). After diagnosis of AFP-producing gastric adenocarcinoma, total gastrectomy, with splenectomy, was performed. The tumor showed immunohistochemical positivity for AFP and Hep Par 1. According to these histopathological and immunohistochemical findings, the tumor was diagnosed as hepatoid adenocarcinoma. At 24 months postoperatively the patient is still alive without metastatic disease on repeated abdominal CTs. Because of the poor prognosis for this histological type of tumor, accurate diagnosis of hepatoid adenocarcinoma is important, and long-term follow-up is required. (Acta gastro enterol. belg., 2009, 72, 253-256).
Frontiers in medicine, 2017
Hepatoid adenocarcinoma of the stomach (HAS) is a rare aggressive tumor with hepatocellular differentiation. HAS often produces alpha fetoprotein (AFP) and metastasizes to the lymph nodes and the liver. Molecular studies revealed amplification and overexpression, association with mutations, but no association with mutations. and mutations have not yet been evaluated in hepatoid carcinoma of the stomach so far. Hereby, we present a case of a 41-year-old female patient with HAS with high AFP level and liver metastases. Molecular analysis revealed overexpression by immunohistochemistry (IHC), but no , or mutations were detected. The patient underwent chemotherapy type DCX (docetaxel, cisplatinum, and capecitabine) every 3 weeks with partial response after two cycles, maintained for eight cycles, and then was on maintenance therapy with trastuzumab for 7 months before relapsing and dying 18 months from the day of diagnosis. Conclusively, HAS may be misdiagnosed as hepatocellular carcino...
Asian Journal of Oncology
Hepatoid adenocarcinoma is a rare type of extra-hepatic adenocarcinoma which exhibits morphological, functional, and immunohistochemical features of hepatocellular carcinoma, hence correct diagnosis poses a challenge. The most frequent site of this tumor is stomach and rarely occurs in ovaries, lung, gallbladder, pancreas, uterus, and other sites. We present four cases of hepatoid adenocarcinoma of our hospital at rare sites like lungs and gallbladder along with literature review and a simplified approach to diagnosis. In absence of adequate immunohistochemistry or radiological findings often this entity is missed or misdiagnosed as metastatic hepatocellular carcinoma. We have analyzed these hepatoid adenocarcinoma cases in terms of various clinical, serological, histo-morphological, and immunohistochemical parameters, and propose a systematic approach to correctly diagnose this entity.
Hepatoid adenocarcinoma of the stomach : case report and short notes on immuno histochemical markers
Hepatoid adenocarcinoma of the stomach is a rare type of gastric carcinoma with an extremely poor prognosis. We describe a 72-year-old man who underwent esophagogastroduodenoscopy which revealed 50 mm exulcerated lesion with a central necrosis on the lesser curvature and the posterior wall of the body of the stomach. Gastric biopsy revealed a poorly differentiated (anaplastic) adenocarcinoma. The serum level of alpha-fetoprotein (AFP) was (3220 ng/mL). After diagnosis of AFP-producing gastric adenocarcinoma, total gastrectomy, with splenectomy, was performed. The tumor showed immunohistochemical positivity for AFP and Hep Par 1. According to these histopathological and immunohistochemical findings, the tumor was diagnosed as hepatoid adenocarcinoma. At 24 months postoperatively the patient is still alive without metastatic disease on repeated abdominal CTs. Because of the poor prognosis for this histological type of tumor, accurate diagnosis of hepatoid adenocarcinoma is important, and long-term follow-up is required.
Hepatoid Adenocarcinoma of the Stomach
Hepatoid adenocarcinoma is a rare subtype of extra-hepatic adenocarcinoma generally characterized by hepatocellular carcinoma like foci in the background of adenocarcinoma. Stomach is the most frequent site where hepatoid adenocarcinoma occurs, although it has been described in many other organs. We describe a case of 16 years old adolescent girl who was diagnosed as a case of "hepatoid adenocarcinoma of stomach', an unlikely presentation at this young age.
11.[27-30]Hepatoid Adenocarcinoma of the Stomach - Copy
Hepatoid adenocarcinoma is a rare subtype of extra-hepatic adenocarcinoma generally characterized by hepatocellular carcinoma like foci in the background of adenocarcinoma. Stomach is the most frequent site where hepatoid adenocarcinoma occurs, although it has been described in many other organs. We describe a case of 16 years old adolescent girl who was diagnosed as a case of "hepatoid adenocarcinoma of stomach', an unlikely presentation at this young age.
11.[27-30]Hepatoid Adenocarcinoma of the Stomach
Hepatoid adenocarcinoma is a rare subtype of extra-hepatic adenocarcinoma generally characterized by hepatocellular carcinoma like foci in the background of adenocarcinoma. Stomach is the most frequent site where hepatoid adenocarcinoma occurs, although it has been described in many other organs. We describe a case of 16 years old adolescent girl who was diagnosed as a case of "hepatoid adenocarcinoma of stomach', an unlikely presentation at this young age.