Study Notes

Eczematous Dermatitis Eczematous dermatitis includes a large category of skin lesions characterized by severe pruritus and distinctive gross and microscopic features.  - type I hypersensitivity is involved with atopic dermatitis in patients who have an allergic history.  - type IV hypersensitivity is involved in contact dermatitis (poison ivy).  - acute eczematous dermatitis is characterized by a weeping, pruritic rash, while a chronic eczematous …

Test for Antigen - Antibody Reactions Antigens are those substance that stimulates the production of antibodies which, when enter into the body it reacts specifically in a manner that are clearly visible.  Some antigens may not induce antibody production, but instead creates immunological tolerance.  An antigen introduced into the body produces only specific antibodies and will react with only those specific antigens.  These antibodies appear …

Autoimmune Diseases These are a group of disease where antibodies  (or CMI) are produced against self antigens, causing disease process. Normally one's immune competent cells do not react against one's own tissues. This is due to self tolerance acquired during embryogenesis. Any antigen encountered at that stage is recognized as self and the clone of cells capable of forming the corresponding antibody is suppressed. Mechanism of autoimmuni…