Photodermatoses: Exploring Clinical Presentations, Causative Factors, Differential Diagnoses, and Treatment...

Photodermatoses encompass a group of skin diseases triggered by exposure to UV radiation. Most frequently, these conditions are subcategorized as either photocontact dermatitis (PCD) or photoallergic dermatitis. Although generally non-life threatening, photodermatoses can severely diminish a patient's quality of life and cause considerable distress. Photocontact dermatitis, also known as photoallergy, represents a type of allergic contact dermatitis that develops following exposure to an inciting topical, oral, or environmental allergen with subsequent exposure to sunlight. The distinctive characteristic of PCD is localization to sun-exposed areas of the skin, such as the arms, legs, neck, and face. While uncommon, PCD remains an important consideration in the differential diagnosis in patients presenting with the corresponding clinical manifestations. Collaborative efforts between the patient and physician are vital in identifying potential triggers to prevent future eruptions.