CD19 is expressed by normal and neoplastic B cells but is not expressed by T cells, monocytes, or granulocytes. CD19 protein appears early during B-cell maturation and is found during all stages of B-cell maturation, including plasma cells. CD19 is useful as an additional marker of B cell lineage in leukemias and lymphomas. Expression of CD19 may be seen in some acute myeloid leukemias.
No special preparation is needed for Cd 19 Immunohistochemistry Bone Marrow. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Cd 19 Immunohistochemistry Bone Marrow. Your doctor depending on your condition will give specific instructions.
| Gender | Age groups | Value |
| UNISEX | All age groups | Test is positive if the conditions listed are detected |