Colon – Colorectal adenocarcinoma with strong TTF1 positivity of a large fraction of tumor cells
Colon – Colorectal adenocarcinoma with strong TTF1 positivity of a large fraction of tumor cells
Kidney – TTF1 negative chromophobe carcinoma
Kidney – TTF1 negative chromophobe carcinoma
Kidney – TTF1 negative clear cell carcinoma
Kidney – TTF1 negative clear cell carcinoma
Kidney – TTF1 negative papillary carcinoma
Kidney – TTF1 negative papillary carcinoma
Lung – Adenocarcinoma with strong TTF1 staining of tumor cells (2)
Lung – Adenocarcinoma with strong TTF1 staining of tumor cells (2)
Lung – Adenocarcinoma with strong TTF1 staining of tumor cells
Lung – Adenocarcinoma with strong TTF1 staining of tumor cells
Lung – Neuroendocrine tumor with strong TTF1 positivity of tumor cells
Lung – Neuroendocrine tumor with strong TTF1 positivity of tumor cells
Lung – TTF1 negative malignant mesothelioma (epitheloid). (2)
Lung – TTF1 negative malignant mesothelioma (epitheloid). (2) 
Lung – TTF1 negative malignant mesothelioma (epitheloid). Strong TTF1 positivity is seen in interspersed normal cells
Lung – TTF1 negative malignant mesothelioma (epitheloid). Strong TTF1 positivity is seen in interspersed normal cells
Lung – TTF1 negative malignant mesothelioma (epitheloid)
Lung – TTF1 negative malignant mesothelioma (epitheloid)
Lung – TTF1 negative squamous cell carcinoma
Lung – TTF1 negative squamous cell carcinoma
Pancreas – Neuroendocrine tumor with TTF1 staining of variable intensity in tumor cells
Pancreas – Neuroendocrine tumor with TTF1 staining of variable intensity in tumor cells
Pancreas – TTF1 negative neuroendocrine tumor
Pancreas – TTF1 negative neuroendocrine tumor
Soft tissue – Schwannoma with strong TTF1 immunostaining of tumor cells
Soft tissue – Schwannoma with strong TTF1 immunostaining of tumor cells
Stomach – Gastric adenocarcinoma (intestinal type) with strong TTF1 staining of a subset of tumor cells
Stomach – Gastric adenocarcinoma (intestinal type) with strong TTF1 staining of a subset of tumor cells
Testis – TTF1 negative seminoma
Testis – TTF1 negative seminoma
Thymus – Thymoma with strong TTF1 immunostaining of epithelial tumor cells
Thymus – Thymoma with strong TTF1 immunostaining of epithelial tumor cells
Thyroid – Anaplastic carcinoma with strong TTF1 immunostaining of tumor cells
Thyroid – Anaplastic carcinoma with strong TTF1 immunostaining of tumor cells
Thyroid – Follicular carcinoma displaying strong TTF1 staining of tumor cells
Thyroid – Follicular carcinoma displaying strong TTF1 staining of tumor cells
Thyroid – Medullary cancer with strong TTF1 immunostaining of tumor cells
Thyroid – Medullary cancer with strong TTF1 immunostaining of tumor cells
Thyroid – Papillary carcinoma with strong TTF1 positivity of all tumor cells
Thyroid – Papillary carcinoma with strong TTF1 positivity of all tumor cells
Urinary bladder – Muscle-invasive urothelial carcinoma with strong TTF1 immunostaining of a large subset of tumor cells
Urinary bladder – Muscle-invasive urothelial carcinoma with strong TTF1 immunostaining of a large subset of tumor cells