Brow Fat Transposition for Reconstruction of Hollowing After Dermoid Cyst Excision on the Outer Upper Eyelid in a Young Woman: A Case Report

Periocular hollowing following tumor excision presents unique reconstructive challenges, particularly in young patients, as the literature on post-excisional reconstruction remains limited compared with that on age-related volume loss. We report the case of a 13-year-old female who presented with a dermoid cyst in the right upper eyelid causing mechanical ptosis. Following complete excision, a significant hollow developed at the surgical site. A single-stage reconstruction was performed using a pedicled brow fat (retro-orbicularis oculi fat) flap transposition to address the volume deficit. At the 18-month follow-up, excellent contour restoration and symmetry were achieved without complications. This case highlights that brow fat transposition offers a reliable, single-stage reconstructive option for upper eyelid hollowing following tumor excision, providing stable autologous volume augmentation with favorable aesthetic outcomes in young patients.