In some of the vocal folds some primary and secondary lymphoid nodules present. Distinguish between primary and secondary nodules . Local blood and lymph capillaries and nerve fibers. See Figure 7. See Figure 8.
Many lymphatic nodules are present, distinguish between primary and secondary nodules .
Diffuse infiltration of the connective tissue is present between the nodules, and lymphocytic infiltration into the moist stratified squamous epithelium makes the base of the epithelium hard to define. Some IgA in the monomeric form can also be found in the circulation . Via the secretory piece and vacuoles the dimers are transported to the surface of the epithelium where they are free to react with the appropriate antigens of microbes.