Mast cell
Chapter: 2
These cells are found in the tissues. They look like basophils, because their large granules stain in the same way. They are also similar to basophils with respect to their surfaces having receptors for IgE, and in regard to the complement of proinflammatory mediators that they are capable of producing. Despite these similarities, however, mast cells are produced through a completely separate lineage than the one that is responsible for basophils.