Adrenal gland- Pheochromocytoma lacking CD22 positive lymphocytes
Colon- Colorectal adenocarcinoma without any CD22 positive lymphocytes
Kidney- Clear cell renal cell carcinoma containing one CD22 positive lymphocyte
Liver- Hepatocellular carcinoma lacking CD22 positive lymphocytes
Lymph node- B-CLL exhibiting strong CD22 staining of tumor cells
Lymph node- CD22 immunostaining is only weak in tumor cells of a Burkitt’s lymphoma
Lymph node- CD22 negative peripheral T-cell lymphoma containing interspersed non-neoplastic CD22 positive B-cells
Lymph node- Diffuse large B-cell lymphoma with strong CD22 immunostaining of all tumor cells
Lymph node- Follicular B-cell lymphoma showing strong CD22 staining of neoplastic cells
Lymph node- Hodgkin’s lymphoma lacking CD22 staining of Hodgkin and Reed-Sternberg cells. CD22 staining is limited to non-neoplastic B-cells
Lymph node- Hodgkin’s lymphoma with moderate intensity CD22 staining of Hodgkin and Reed-Sternberg cells
Lymph node- Mantle cell lymphoma with strong CD22 immunostaining of tumor cells
Lymph node- Marginal zone lymphoma showing only weak CD22 staining of tumor cells. CD22 staining is stronger in few interspersed non-neoplastic B-cells
Oral cavity- CD22 negative squamous cell carcinoma containing numerous CD22 positive lymphocytes
Ovary- Serous high-grade carcinoma containing multiple CD22 positive lymphocytes
Prostate- Adenocarcinoma (Gleason 3+3=6) containing multiple CD22 positive lymphocytes
Prostate- Adenocarcinoma (Gleason 3+3=6) lacking CD22 positive lymphocytes
Salivary gland- Warthin tumor showing strong CD22 staining of most tumor-associated lymphocytes
Stomach- Gastric adenocarcinoma lacking CD22 positive lymphocytes
Stomach- Gastrointestinal stromal tumor (GIST) lacking CD22 positive lymphocytes
Testis- Seminoma containing many CD22 positive lymphocytes
Thyroid- Medullary carcinoma lacking CD22 positive lymphocytes
Urinary bladder- Small cell carcinoma lacking CD22 positive lymphocytes
Vagina- Squamous cell carcinoma including numerous CD22 positive lymphocytes