A 34-year-old electric company employee visits the doctor with a skin rash on his right leg. He hasn't tried any new meals or used any different detergents, soaps, or lotions. When pressed further, the patient recalls working on a repair project in an unmaintained, forested region. As a youngster, he experienced atopic dermatitis but no other severe ailments. On inspection, he seems uneasy and is continually clawing his leg. His lungs are both clean, and his heart sounds are normal. The findings of his right leg examination are shown in the figure below. Which of the following cells is most responsible for causing the tissue damage seen in this patient?

Question

A 34-year-old electric company employee visits the doctor with a skin rash on his right leg. He hasn't tried any new meals or used any different detergents, soaps, or lotions. When pressed further, the patient recalls working on a repair project in an unmaintained, forested region. As a youngster, he experienced atopic dermatitis but no other severe ailments. On inspection, he seems uneasy and is continually clawing his leg. His lungs are both clean, and his heart sounds are normal. The findings of his right leg examination are shown in the figure below.  Which of the following cells is most responsible for causing the tissue damage seen in this patient?

Quizplus · Accepted Answer

Eductional Objective: Poison ivy dermatitis is a type IV hypersensitivity response mediated predominantly by T cells that is a kind of allergic contact dermatitis. It appears as pruritic erythematous papules, vesicles, or bullae that frequently create linear patterns.

A 34-Year-Old Electric Company Employee Visits the Doctor with a Skin