Merciful Malady: Renbök Phenomenon Between Alopecia Areata and Psoriasis Vulgaris

This case report discusses the Renbök phenomenon observed in an 11-year-old girl who presented with both alopecia areata and psoriasis vulgaris. The patient exhibited multiple hyperpigmented scaly plaques on various parts of her body, including the scalp, trunk, and limbs, while experiencing patchy hair loss on the scalp that was notably free of these plaques. The report highlights an intriguing immunological interaction between these two autoimmune conditions, where the presence of one disorder appears to inhibit the manifestation of the other in the affected areas.