Abstract
On the basis of our observations and previously published data, it is proposed that in at least certain forms of chronic otitis media with effusion there is a relative predominance of macrophage-monocyte cells which are actively immunosuppressive for the proliferative response to mitogens and specific antigens, as well as for the synthesis of specific immunoglobulins. Such immunological hypo-responsiveness may be related to the patho-genesis of chronic otitis media with such effusions.