“PO-26 | Optic nerve sheath ultrasound in idiopatic intracranial hypertension: early findings: Francesca Cotichelli,1,2 Davide Mascarella1,1,2 Valentina Favoni,1 Gaia Patanè,1,2 Francesco Severi,1,2 Francesca Verna,1,2 Giulia Pierangeli,1,2 Sabina Cevoli1 | 1IRCCS Istituto delle Scienze Neurologiche di Bologna; 2DIBINEM, Department of Biomedical and Neuromotor Science, Alma Mater Studiorum, Bologna, Italy” (2025) Confinia Cephalalgica, 35(S1). doi:10.4081/cc.2025.15848.