Anal canal- GS negative squamous cell carcinoma containing few inflammatory cells with GS expression
Breast- Invasive breast cancer of no special type (NST) exhibiting a GS immunostaining of variable intensity in tumor cells (mosaic pattern)
Breast- Invasive lobular breast cancer with diffuse strong GS positivity
Colon- GS negative colorectal adenocarcinoma containing many GS positive inflammatory cells
Esophagus- GS negative adenocarcinoma infiltrated by GS positive inflammatory cells
Esophagus- Squamous cell carcinoma with strong GS immunostaining of the majority of tumor cells
Kidney- GS negative clear cell renal cell carcinoma
Kidney- Oncocytoma with strong GS immunostaining of most tumor cells
Larynx- Squamous cell carcinoma with strong GS immunostaining of most tumor cells
Liver- GS negative cholangiocellular carcinoma containing numerous GS positive inflammatory cells
Liver- Hepatocellular carcinoma with excessive GS positivity of all tumor cells
Lung- GS negative small cell carcinoma containing few GS positive inflammatory cells
Lymph node- Diffuse large B-cell lymphoma with strong GS immunostaining of the majority of cells
Lymph node- GS negative B-CLL. GS staining is only seen in few associated macrophages
Lymph node- GS negative B-CLL. GS staining is only seen in few associated macrophages.
Lymph node- GS negative Hodgkin’s lymphoma containing a large number of GS positive inflammatory cells
Lymph node- GS negative Hodgkin’s lymphoma including numerous GS positive inflammatory cells
Ovary- Serous high-grade carcinoma with intense GS immunostaining of tumor cells
Pancreas- Ductal adenocarcinoma with focal weak to moderate GS positivity of tumor cells
Pancreas- GS negative neuroendocrine tumor
Prostate- GS negative adenocarcinoma (Gleason 3+3=6)
Prostate- GS negative adenocarcinoma (Gleason 4+4=8) containing numerous inflammatory cells with high level GS expression
Salivary gland- Warthin tumor with strong GS positivity of a small subset of epithelial tumor cells
Soft tissue- Giant cell tumor of the tendon with strong GS immunostaining of virtually all cells
Soft tissue- GS negative leiomyosarcoma containing GS positive inflammatory cells
Soft tissue- GS negative liposarcoma
Stomach- Gastric adenocarcinoma with strong GS immunostaining of tumor cells. Tumor infiltrating inflammatory cells also stain positive
Stomach- GS negative gastric adenocarcinoma containing GS positive inflammatory cells
Stomach- GS negative gastrointestinal stromal tumor (GIST)
Testis- GS negative seminoma containing GS positive macrophages
Testis- Leydig cell tumor with excessive GS immunostaining of all tumor cells
Thymus- Thymoma with intense GS staining of epithelial tumor cells
Thyroid- Follicular adenoma exhibiting a very strong GS immunostaining of all cells
Thyroid- GS negative medullary carcinoma
Thyroid- Papillary cancer showing a weak GS immunostaining of tumor cells
Urinary bladder- GS negative muscle-invasive urothelial carcinoma containing few GS positive inflammatory cells
Urinary bladder- Muscle-invasive urothelial carcinoma with strong GS immunostaining of tumor cells
Urinary bladder- Small cell carcinoma with moderate to strong GS immunostaining of all tumor cells
Uterus, cervix- Adenocarcinoma exhibiting a strong GS positivity of tumor cells
Vulva- Strong GS immunostaining of _95_ of tumor cells of a squamous cell carcinoma