tonsil, appendix, and some T-cell lymphomas
Regulatory status: IVD, FDA Class I
8226-C010: RTU, 10 capsules; 1 pack
8226-M250: RTU, 1 cartridge, 250 tests; 1 unit
CD4 is a transmembrane protein expressed in helper T-cells, the majority of mature peripheral T-lymphocytes and mature thymocytes, and a subset of suppressor of cytotoxic T-cells.
Moderate staining in Hodgkin lymphoma.
Negative staining in columnar epithelial cells of normal colon but moderate staining in lymphoid T-cells.