ArticleWorld journal of gastroenterology2020
Ectopic hepatocellular carcinoma mimicking a retroperitoneal tumor: A case report.
Article in World journal of gastroenterology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.
- Combination therapy with anti-PD-1 antibody, radiotherapy, and tyrosine kinase inhibitor for unresectable primary ectopic hepatocellular carcinoma: a case report with genomic profiling and literature review.Frontiers in immunology · 2026Pooled it
- Ectopic hepatocellular carcinoma metastasizing to the brain with initial presentation as tumor stroke syndrome: a case report.BJR case reports · 2026Article
- Unresectable ectopic hepatocellular carcinoma in the left sub-diaphragmatic area and retroperitoneum treated with TACE: case report and literature review.Cancer biology & therapy · 2025Review
- A case of complete response to radiotherapy combined with durvalumab and tremelimumab in a patient with unknown primary hepatocellular carcinoma arising in the lumbar spine.Clinical journal of gastroenterology · 2025Article
- Ectopic hepatocellular carcinoma, an unexpected diagnosis of a retroperitoneal mass: A case report and literature review.Radiology case reports · 2024Article
- Hepatocellular carcinoma presenting as an extrahepatic mass: A case report and review of literature.World journal of gastrointestinal oncology · 2024Article
- A rare and challenging case of extrahepatic costal metastases from an unknown primary hepatocellular carcinoma.Gastroenterology and hepatology from bed to bench · 2024Article
- Ectopic Hepatocellular Carcinoma in the Gallbladder Wall With Choledocholithiasis: A Case Report.Cureus · 2023Article
- Ectopic Hepatocellular Carcinoma Manifesting as Paraspinal Mass: An Unusual Entity.ACG case reports journal · 2023Article
- Left epigastric isolated tumor fed by the inferior phrenic artery diagnosed as ectopic hepatocellular carcinoma: A case report.World journal of clinical cases · 2023Article
- Not a neuroendocrine tumor: A case of hepatocellular carcinoma in ectopic liver tissue in the pancreas.Annals of hepato-biliary-pancreatic surgery · 2023Article
- Ectopic hepatocellular carcinoma of the right adrenal gland: a case description.Quantitative imaging in medicine and surgery · 2023Article
- A large ectopic hepatocellular carcinoma with adrenal infiltration: a rare case report.Frontiers in oncology · 2023Article
- Ectopic lesions in the abdomen and pelvis: a multimodality pictorial review.Abdominal radiology (New York) · 2022Review
- Mediastinal Hepatoid Adenocarcinoma Treated With Arterial Interventional Therapy: A Case Report and Review of Literature.Frontiers in oncology · 2022Article
- Challenge in Diagnosis and Treatment of Ectopic Hepatocellular Carcinoma: A Case Report and Literature Review.Frontiers in surgery · 2022Article
- Robotic Distal Pancreatectomy and Splenectomy for an Intrapancreatic Hepatocellular Carcinoma: A Case Report and Review of the Literature.Journal of pancreatic cancer · 2020Article
- Laparoscopically Resected Ectopic Hepatocellular Carcinoma Mimicking Subepithelial Tumor of Stomach: A Case Report.Case reports in oncologyArticle
Corrections and comments
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Authors and funding
11 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAn ectopic hepatocellular carcinoma (EHCC) arises from the ectopic liver which is defined as a hepatic organ or tissue not connected to surrounding tissues. EHCC is a rare disease and it is difficult to diagnose preoperatively. Furthermore, the clinical features are not fully elucidated. CASE SUMMARY: A retroperitoneal tumor (6 cm) was located at the dorsal side of the pancreas head on abdominal ultrasonography in an 81-year old woman positive for hepatitis C virus antibody. Contrast enhanced-computed tomography and gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging showed viable HCC patterns with early enhancement and delayed washout. The tumor markers - serum alpha-fetoprotein and alpha-fetoprotein-L3% - were increased to 30.1 ng/mL and 83.1%, respectively. Protein induced by vitamin K absence or antagonist-II was within normal levels (17 mAU/mL). Positron emission tomography-computed tomography showed strong accumulation into the tumor (Standardized Uptake Value max: 13.8), and the tumor cytology following endoscopic ultrasound-guided fine needle aspiration showed poorly differentiated carcinoma. Tumor extirpation was performed, and operative findings showed that the retroperitoneal tumor was disconnected from the pancreas and the liver. Swollen lymph nodes near the tumor were histologically normal. On histological examination, the tumor was finally diagnosed as EHCC with Arginase-1 positive expression.
conclusionWe report our experience of a rare EHCC which was difficult to diagnose, and we present a review of the literature.
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