Case ReportPublished 31 August 2026Case Report: Successful dupilumab treatment for refractory atopic dermatitis-like eczema in a patient with Costello syndromeToshihiko Nonaka · Jun Kido · Mika Ogata · Taiga Miyake · Takanobu Yoshida · Satoshi Fukushima · Rie Seyama · Yuri Uchiyama · Naomichi Matsumoto · Kimitoshi NakamuraJournal of Cutaneous Immunology and Allergydoi 10.3389/jcia.2026.17346