Adrenal gland - GP-2 negative pheochromocytoma.
Breast - GP-2 negative invasive breast cancer of no special type (NST).
Colon - GP-2 negative colorectal adenocarcinoma.
Esophagus - GP-2 negative adenocarcinoma.
Kidney - GP-2 negative clear cell renal cell carcinoma.
Larynx - GP-2 negative squamous cell carcinoma.
Larynx - Squamous cell carcinoma completely lacking GP-2 staining.
Liver - GP-2 negative cholangiocellular carcinoma.
Lung - GP-2 negative adenocarcinoma.
Ovary - GP-2 negative serous high-grade carcinoma
Pancreas - Acinar cell carcinoma showing strong GP-2 immunostaining of all tumor cells.
Pancreas - Acinar cell carcinoma with moderate to strong GP-2 immunostaining of >50% of tumor cells
Pancreas - Acinar cell carcinoma with variable (weak to strong) GP-2 positivity of tumor cells.
Pancreas - GP-2 negative ductal adenocarcinoma.
Pancreas - GP-2 negative neuroendocrine tumor.
Penis - GP-2 negative squamous cell carcinoma.
Prostate - GP-2 negative adenocarcinoma (Gleason 3+3=6)
Soft tissue - GP-2 negative liposarcoma.
Stomach - Gastric adenocarcinoma showing focal weak to moderate GP-2 immunostaining.
Stomach - GP-2 negative gastrointestinal stromal tumor (GIST).
Testis - GP-2 negative seminoma.
Thyroid - GP-2 negative medullary cancer.
Thyroid - GP-2 negative papillary cancer.
Urinary bladder - GP-2 negative muscle-invasive urothelial carcinoma.
Uterus - GP-2 negative endometrium carcinoma.