Anatomic features of congenital nasolacrimal duct obstruction: a comparative computed tomography study.

ABSTRACT:

Background

Investigating the anatomic features of congenital nasolacrimal duct obstruction (CNLDO) is crucial for understanding its etiology and guiding surgical management. This study aimed to compare the computed tomography (CT)-based features of the lacrimal sac fossa (LF) and nasolacrimal duct (NLD) in CNLDO patients against matched controls.

Methods

This retrospective comparative observational study included 39 CNLDO patients who underwent cranial CT for preoperative evaluation, subdivided into 18 cases with chronic dacryocystitis and 21 cases without. For each patient, an age- and gender-matched control undergoing cochlear implantation CT assessment and screened to exclude craniofacial anomalies was enrolled. Measurements were conducted on CT images, including LF heigh

SUBMITTER: Wang W 

PROVIDER: S-EPMC12591900 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature