Adrenal gland- Cystatin A negative adrenocortical adenoma.
Anal canal- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells. Cystatin A is also abundant in various cell types of the tumor stroma.
Colon- Cystatin A negative colorectal adenocarcinoma containing few Cystatin A positive inflammatory cells.
Esophagus- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells.
Kidney- Cystatin A negative clear cell renal cell carcinoma.
Liver- Cystatin A negative hepatocellular carcinoma.
Lung- Cystatin A negative adenocarcinoma. A weak Cystatin A staining is seen in a fraction of associated inflammatory cells.
Lung- Cystatin A negative malignant mesothelioma (epitheloid).
Lung- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells. Cystatin A is also abundant in various cell types of the tumor stroma.
Lymph node- Cystatin A negative diffuse large B-cell lymphoma containing numerous Cystatin A positive reactive inflammatory cells.
Lymph node- Cystatin A negative follicular B-cell lymphoma showing abundant Cystatin A expression in dendritic cells.
Lymph node- Cystatin A negative Hodgkin’s lymphoma containing numerous Cystatin A positive reactive inflammatory cells.
Lymph node- Cystatin A negative mantle cell lymphoma containing numerous Cystatin A positive reactive inflammatory cells.
Oral cavity- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells. Cystatin A is also abundant in various cell types of the tumor stroma.
Ovary- Cystatin A negative endometroid carcinoma.
Ovary- Cystatin A negative serous high-grade carcinoma.
Ovary- Serous high-grade carcinoma with moderate Cystatin A immunostaining of tumor cells.
Pancreas- Cystatin A negative neuroendocrine tumor.
Pancreas- Ductal adenocarcinoma with moderate Cystatin A immunostaining of tumor cells. Cystatin A positive granulocytes are also present.
Penis- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells.
Pharynx- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells. Cystatin A is also abundant in the tumor stroma.
Prostate- Cystatin A negative adenocarcinoma (Gleason 3+3=6).
Salivary gland- Warthin tumor with variable intensity Cystatin A immunostaining of tumor cells. Cystatin A is also strongly expressed in tumor associated dendritic cells.
Skin- Cystatin A negative basal cell carcinoma.
Soft tissue- Cystatin A negative liposarcoma including numerous Cystatin A positive macrophages and granulocytes.
Stomach- Cystatin A negative gastric adenocarcinoma containing numerous Cystatin A positive granulocytes.
Stomach- Cystatin A negative gastrointestinal stromal tumor (GIST).
Testis- Cystatin A negative seminoma showing abundant Cystatin A expression in tumor associated macrophages.
Thyroid- Cystatin A negative papillary carcinoma.
Urinary bladder- Cystatin A negative small cell carcinoma.
Vagina- Squamous cell carcinoma with Cystatin A immunostaining of variable intensity in tumor cells.
Vulva- Squamous cell carcinoma with strong Cystatin A immunostaining of tumor cells. Cystatin A is also abundant in various cell types of the tumor stroma.