Question

Erythema multiforme most commonly involves what body parts:

a. Palms, soles, backs of hands and feet, and extensor aspects of forearms and legs
b. Head and neck region only
c. Trunk and abdomen only
d. Joints and muscles

Answer 1

Erythema multiforme commonly affects the palms, soles, backs of hands and feet, and extensor aspects of forearms and legs, characterized by target-like lesions that can be itchy.

Step-by-step explanation:

Erythema multiforme most commonly involves the following body parts: palms, soles, the backs of hands and feet, and the extensor aspects of forearms and legs. This condition is characterized by target-like lesions with red, white, blue or blue-black zones and can also affect mucous membranes. These lesions typically present as round patches that can be itchy or cause burning sensations. Erythema multiforme is considered to be a hypersensitivity reaction to certain infections, medications, or other triggers. It is not typically associated with parts of the body such as the head, neck, trunk, abdomen, joints, or muscles, which helps to differentiate it from other skin conditions. For instance, conditions like psoriasis, eczema, herpes simplex, and various forms of dermatitis may affect these regions with different clinical presentations.