Dermatologic clinical case

Santos, Raquel; Quintela, Carolina; Silva, Joana Azevedo; Peralta, Lígia; Sá, Aida

http://hdl.handle.net/10400.16/3718

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Abstract(s)

Phytophotodermatosis (PPD) is a skin reaction caused by contact with furocoumarins, photosensitizing substances present in certain plants, followed by exposure to ultraviolet radiation. Herein we report a case of a 17-year-old teenager who developed a cutaneous reaction after using rue (Ruta graveolens) as a homemade treatment for acne. The condition presented with a characteristic inflammatory phase, followed by a hyperpigmentation phase. A diagnosis of PPD due to rue was established, and with rue eviction there was a full resolution. The authors aim to raise awareness about this condition which requires a high level of clinical suspicion for identifying the etiological agent. Prompt recognition and intervention are crucial in preventing the worsening and recurrence of the reaction.