Case reports in oncology · 2025
Non-Metastatic Pure Pancreatic Hepatoid Carcinoma with Genomic and Transcriptomic Analysis: A Case Report.
Клинический случайСтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Punnen Subin, Csizmok Veronika, Frey Connor, Gilbert Richard, Schaeffer David F, Yip Stephen, Marra Marco A, Laskin Janessa, Bleszynski Michael, Owen Daniel R
Аннотация
BACKGROUND: Pancreatic hepatoid carcinoma (PHC) is a rare and poorly characterized malignancy, with approximately 50 reported cases in the literature. Pure PHC, which lacks any features of adenocarcinoma or neuroendocrine differentiation, is a subset of this population and is extremely rare. Data on its management and genomic findings are limited, and further characterization may provide helpful information in caring for these patients.
CASE PRESENTATION: A 42-year-old female was found to have a large, well-circumscribed mass in the body of the pancreas with elevated serum alpha-fetoprotein. Imaging demonstrated an 8.5 cm pancreatic lesion with no other disease. Endoscopic ultrasound-guided biopsy revealed a bile-producing carcinoma with morphological and immunohistochemical features consistent with hepatocellular carcinoma. She underwent a subtotal pancreatectomy and splenectomy, and pathologic evaluation confirmed a well-differentiated pure PHC confined to the pancreas. Whole genome and transcriptome analysis showed microsatellite stability, an elevated tumour mutation burden, copy number alterations in Chr19p13.3, and no mutations typically seen in pancreatic ductal adenocarcinoma (PDAC). These findings support the diagnosis of a pure hepatoid carcinoma with clinical, histopathological, and genomic characteristics resembling hepatocellular carcinoma. She remains disease free at 9 months without adjuvant therapy.
CONCLUSION: This case demonstrates further characterization of a rare pancreatic lesion and illustrates the importance of integrated histopathological and genomic analyses in characterizing rare malignancies. Additionally, our findings suggest that pure PHC may be a distinct entity rather than a variant of PDAC.
CASE PRESENTATION: A 42-year-old female was found to have a large, well-circumscribed mass in the body of the pancreas with elevated serum alpha-fetoprotein. Imaging demonstrated an 8.5 cm pancreatic lesion with no other disease. Endoscopic ultrasound-guided biopsy revealed a bile-producing carcinoma with morphological and immunohistochemical features consistent with hepatocellular carcinoma. She underwent a subtotal pancreatectomy and splenectomy, and pathologic evaluation confirmed a well-differentiated pure PHC confined to the pancreas. Whole genome and transcriptome analysis showed microsatellite stability, an elevated tumour mutation burden, copy number alterations in Chr19p13.3, and no mutations typically seen in pancreatic ductal adenocarcinoma (PDAC). These findings support the diagnosis of a pure hepatoid carcinoma with clinical, histopathological, and genomic characteristics resembling hepatocellular carcinoma. She remains disease free at 9 months without adjuvant therapy.
CONCLUSION: This case demonstrates further characterization of a rare pancreatic lesion and illustrates the importance of integrated histopathological and genomic analyses in characterizing rare malignancies. Additionally, our findings suggest that pure PHC may be a distinct entity rather than a variant of PDAC.