case_images: PMC8175251_01
case_images: Transabdominal ultrasound demonstrating a well-circumscribed hypoechoic pancreatic lesion without pancreatic ductal dilation. Red arrow denotes the lesion.
case_images: pancan.2020.0009_figure1.jpg
case_images: PMC8175251_01_pancan.2020.0009_figure1.jpg
case_images: f1
case_images: A hypoechoic 1.1 cm cystic mass without significant vascularity was identified in the body of the pancreas without ductal dilation (Fig. 1).
case_images: Magnetic resonance imaging of the pancreatic lesion. Red arrows denote the pancreatic lesion.
case_images: pancan.2020.0009_figure2.jpg
case_images: PMC8175251_01_pancan.2020.0009_figure2.jpg
case_images: f2
case_images: T2 hyperintensity and a very subtle hyperintense signal on diffusion weighted images. The lesion was isointense with the background pancreatic parenchyma on postcontrast images and was suspicious for a pNET or PDAC (Fig. 2).
case_images: Endoscopic ultrasound demonstrating a well-circumscribed hypoechoic pancreatic lesion without pancreatic ductal dilation. Red arrow denotes the pancreatic lesion.
case_images: pancan.2020.0009_figure3.jpg
case_images: PMC8175251_01_pancan.2020.0009_figure3.jpg
case_images: f3
case_images: An endoscopic ultrasound with fine needle aspiration (FNA) was performed and demonstrated a hypoechoic 11.3 mm by 8.3 mm oval mass in the pancreatic body with well-defined borders (Fig. 3).
case_images: Pathology of tumor and surrounding normal pancreas. (A) H&E low power view of tumor (upper half) and normal pancreas (lower half). (B) H&E higher power (20 x ) view of the neoplastic cell population with a rim of normal pancreas, lower right-hand corner. (C, D) Immunohistochemical stains of the same field at higher power, stained with hepatocyte marker Arginase 1 (C) and epithelial marker MOC-31 (D). H&E, hematoxylin and eosin; MOC-31, a monoclonal antibody against epithelial glycoprotein 2.
case_images: pancan.2020.0009_figure4.jpg
case_images: PMC8175251_01_pancan.2020.0009_figure4.jpg
case_images: f4
case_images: The final pathology was consistent with a 1.5 cm well-differentiated carcinoma with hepatoid features (Fig. 4).