Muhaidat JM, Al-Qarqaz F, Khader Y, et al. - In this study, the effectiveness and safety of two commonly used concentrations of intralesional triamcinolone acetonide (ILT) (5 mg/mL vs 10 mg/mL) were compared in the treatment of patchy alopecia areata (AA) on the scalp. Researchers performed a retrospective comparative study including a total of 85 individuals diagnosed with patchy AA on the scalp, who were treated with monthly injections of ILT. Individuals were categorized into Group 1 that received 5 mg/mL and Group 2 that received 10 mg/mL. This study’s findings demonstrate that intralesional injection of triamcinolone acetonide 5 mg/mL is equally effective and safe in comparison with 10 mg/mL in the treatment of patchy alopecia areata.