Immunopathology is a branch of pathology that deals with the safe reactions related to the maladies and clutters. It joins the examination of the pathology of a living being, organ system or ailment with respect to the immune structure, immunity and immune reactions. It is the branch of bio-medical science stressed with insusceptible responses to infection, with immunodeficiency diseases. Immunopathology is the examination of the helper and valuable signs associated with invulnerable responses to disease or with sicknesses made by the immune system. Immunohistochemistry serves the itinerary towards recognizing antigens (e.g. proteins) in cells of a tissue zone by mishandling the rule of antibodies confining especially to antigens in natural tissues.