A 14-year-old boy is brought to the pediatrician's office in mid summer because of an itchy, blistering rash on his calves and forearms. The rash developed 24 hours after he returned from a weekend Boy Scout camping trip. The pediatrician suspects the lesion is caused by poison ivy. If the doctor is correct, which of the following is NOT a prominent component in the immunologic mechanisms causing the skin lesions?
A) T cells
B) IgE-coated mast cells
C) Interferon-gamma
D) Endothelial adhesion molecules
E) Chemokines
Correct answer is B. IgE-coated mast cells
Poison ivy is type IV hypersensitivity reaction which provokes T cell response for killing of host cells and inflammation. So IgE coated mast cells is not a prominent component from the options given above.
A 14-year-old boy is brought to the pediatrician's office in mid summer because of an itchy,...