Polymorphic Light Eruption

Excerpt

Polymorphic light eruption is the most common form of immunologically mediated photosensitivity dermatoses. Exposure to sunlight in spring or summer results in an irritable rash that resolves within a few days, providing further exposure is avoided. Variants include juvenile spring eruption (vesicles on the ears of young boys) and PMLE sine eruption (pruritus on sun-exposed skin without visible skin changes). Polymorphic light eruption is also known as polymorphous light eruption and prurigo aestivalis.