Adrenal gland - GAD2 negative adrenocortical adenoma
Adrenal gland - GAD2 negative pheochromocytoma
Breast - GAD2 negative invasive breast cancer of no special type (NST)
Breast - GAD2 negative invasive lobular breast cancer
Colon - GAD2 negative colorectal adenocarcinoma
Esophagus - GAD2 negative adenocarcinoma
Esophagus - GAD2 negative squamous cell carcinoma
Ileum - GAD2 negative neuroendocrine tumor
Kidney - GAD2 negative clear cell carcinoma
Kidney - GAD2 negative papillary renal cell carcinoma
Liver - GAD2 negative cholangiocellular carcinoma
Liver - GAD2 negative hepatocellular carcinoma
Lung - GAD2 negative malignant mesothelioma (epitheloid)
Lung - GAD2 negative neuroendocrine tumor
Lymph node - GAD2 negative diffuse large B-cell lymphoma
Ovary - GAD2 negative granulosa cell tumor
Ovary - GAD2 negative serous high-grade carcinoma
Pancreas - GAD2 negative ductal adenocarcinoma
Pancreas - GAD2 negative neuroendocrine tumor
Pancreas - Neuroendocrine tumor exhibiting GAD2 staining of varying intensity of all tumor cells
Pancreas - Neuroendocrine tumor showing weak to moderate GAD2 staining of a fraction of tumor cells
Pancreas - Neuroendocrine tumor with strong GAD2 immunostaining of tumor cells (2)
Pancreas - Neuroendocrine tumor with strong GAD2 immunostaining of tumor cells
Pancreas - Neuroendocrine tumor with strong GAD2 positivity of most tumor cells
Pharynx - GAD2 negative squamous cell carcinoma
Prostate - GAD2 negative adenocarcinoma (Gleason 3+3=6)
Salivary gland - GAD2 negative Warthin tumor
Skin - GAD2 negative Merkel cell carcinoma
Stomach - GAD2 negative gastric adenocarcinoma
Stomach - GAD2 negative gastrointestinal stromal tumor (GIST)
Testis - GAD2 negative embryonal carcinoma
Testis - GAD2 negative Leydig cell tumor
Testis - GAD2 negative seminoma
Thyroid - GAD2 negative medullary carcinoma
Thyroid - GAD2 negative papillary carcinoma
Urinary bladder - GAD2 negative muscle-invasive urothelial carcinoma
Urinary bladder - GAD2 negative small cell carcinoma
Uterus, cervix - GAD2 negative squamous cell carcinoma