Colon- Colorectal adenocarcinoma containing areas with diffuse MUC5AC positivity next to areas with rather few interspersed MUC5AC positive cells.
Colon- Colorectal adenocarcinoma with few scattered MUC5AC positive cells. The distribution of positive cells mirrors the MUC5AC expression pattern in normal colon mucosa.
Colon- Colorectal adenocarcinoma with weak to moderate MUC5AC immunostaining in about 25% of the tumor cells
Colon- Focal MUC5AC positivity in a cholangiocellular carcinoma also showing focal squamoid differentiation
Colon- Focal MUC5AC positivity in a colorectal adenocarcinoma
Colon- Moderate MUC5AC positivity in about 50% of the tumor cells in a cholangiocellular carcinoma of the liver
Colon- MUC5AC negative colorectal adenocarcinoma
Colon- Scattered MUC5AC positive cells in a colorectal adenocarcinoma. The distribution of positive cells is comparable to the MUC5AC expression pattern in normal colon mucosa.
Colon- Strong diffuse MUC5AC immunostaining in a colorectal adenocarcinoma.
Colon- Strong diffuse MUC5AC positivity in a colorectal adenocarcinoma exhibiting an intestinal type growth pattern.
Colon- strong MUC5AC expression in a mucinous colorectal adenocarcinoma.
Colon- Weak to moderate MUC5AC immunostaining in about 50% of the tumor cells of a colorectal adenocarcinoma showing a solid growth pattern.
Uterus- Strong diffuse MUC5AC positivity in an endometroid endometrium cancer.
Lung- adenocarcinoma with very few scattered MUC5AC positive cells.
Lung- Few scattered MUC5AC positive cells in a lepidic adenocarcinoma.
Lung- Focal MUC5AC expression in an adenocarcinoma.
Lung- Strong diffuse MUC5AC positivity in an adenocarcinoma.
Ovary – Scattered MUC5AC positive cells in a serous high-grade carcinoma.
Urinary bladder- Moderate to strong MUC5AC immunostaining in about 50% of cells of a muscle invasive urothelium carcinoma.
Urinary bladder- MUC5AC positivity in a very small fraction of tumor cells in a muscle invasive urothelium carcinoma.
Urinary bladder- Muscle-invasive urothelial carcinoma (pT2) with intense MUC5AC positivity in about 80% of tumor cells.
Pancreas- Intense MUC5AC staining in all cells of a ductal adenocarcinoma. Adjacent normal pancreatic tissue stains negative.
Pancreas- Moderate intensity MUC5AC positivity in a ductal adenocarcinoma (90% of tumor cells).
Pancreas- MUC5AC positivity in about 80% of tumor cells in a ductal adenocarcinoma. A normal excretory duct stains negative.
Pancreas- Strong diffuse MUC5AC immunostaining in a ductal adenocarcinoma.
Stomach- Mucinous adenocarcinoma with intense MUC5AC positivity of all tumor cells.
Stomach- Strong MUC5AC immunostaining in a gastric adenocarcinoma (100% of tumor cells)
Stomach- Strong MUC5AC positivity in a diffuse type gastric adenocarcinoma.
Stomach- Strong MUC5AC positivity in an intestinal type gastric adenocarcinoma.
Stomach- Variable levels of MUC5AC expression in the cells of a gastric adenocarcinoma.
Pancreas: Strong diffuse MUC5AC immunostaining in an adenocarcinoma of the ampulla of Vater.
Ovary: Strong MUC5AC immunostaining in about 80% of the cells in a mucinous carcinoma.
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