Drug-Induced Phototoxicity in Vitiligo- The Role of Hydrochlorothiazide in Photosensitivity Dermatitis, Dr Celina Dubin, Andres D. Parga & Donald Rudikoff .

This case highlights the need to recognize drug-induced photosensitivity in vitiligo and to better understand how UV vulnerability and photosensitizing medications interact.

Dr. Celina Dubin, MD, is a resident physician in dermatology at the Icahn School of Medicine at Mount Sinai. She co-authored this study, which was published in Case Reports in Dermatological Medicine. The study examines the impact of hydrochlorothiazide, a thiazide diuretic commonly used as an antihypertensive agent, in photosensitivity dermatitis, a multifactorial condition characterized by an exaggerated cutaneous response to ultraviolet (UV) radiation, often exacerbated by exogenous agents, particularly photosensitizing medications. This case highlights the need to recognize drug-induced photosensitivity in vitiligo and to better understand how UV vulnerability and photosensitizing medications interact.

Photosensitivity dermatitis is a multifactorial dermatologic condition characterized by an exaggerated cutaneous response to ultraviolet (UV) radiation, often exacerbated by exogenous agents, particularly photosensitizing medications. The pathophysiology involves direct phototoxic or immune-mediated photoallergic mechanisms, leading to inflammatory skin reactions upon UV exposure. In individuals with vitiligo, the absence of melanocytes in depigmented areas significantly diminishes photoprotective mechanisms, rendering these regions highly susceptible to UV-induced damage.

Read the paper here: https://onlinelibrary.wiley.com/doi/10.1155/crdm/4302190