Pancreas – Insulin negative adenocarcinoma of the papilla Vaterii
Pancreas
Pancreas – Neuroendocrine tumor (insulinoma) with moderate to strong Insulin staining of tumor cells
Pancreas
Pancreas – Neuroendocrine tumor (insulinoma) with strong Insulin positivity of the majority of tumor cells
Pancreas
Pancreas – Neuroendocrine tumor (insulinoma) with strong Insulin staining of all tumor cells. Due to the abundance of insulin in the tissue, staining also occurs in the stroma (contamination artifact)