Evaluation of fetal nasal cavity in bilateral congenital dacryocystocele: 3D reconstruction and virtual navigation by magnetic resonance imaging

: Congenital dacryocystocele (CD) is a rare condition and presents as a periorbital cyst in prenatal examinations. CD has high rates of spontaneous resolution in and ex-uterus. However, more severe malformations can present as facial cysts, like encephalocele, venous lymphatic malformation, hemangioma, dermoid cyst, teratoma and rhabdomyosarcoma 1 . In face and neck malformations and tumors, MRI shows accurate images and also may aid in parental counseling 2 . In this report, we demonstrate the 3D reconstruction of MRI images of the fetal upper airways using virtual navigation (VN) to evaluate the tumor extension and nasal permeability in a case of bilateral CD. This article is protected by copyright. All rights reserved.