TY  - JOUR
T1  - Congenital nasolacrimal duct obstruction: Delineation of anatomic abnormalities with 3-dimensional reconstruction
AU  - Weiss AH, Baran F, Kelly J
Y1  - 2012/07/01
N1  - 10.1001/archophthalmol.2012.36
JO  - Archives of Ophthalmology
SP  - 842
EP  - 848
VL  - 130
IS  - 7
N2  - Objective 
                  To characterize anatomical abnormalities of the distal nasolacrimal duct (NLD) in children with congenital obstruction using high-resolution computed tomographic imaging.Methods 
                  The anatomy of the bone and soft tissue of the NLD and the postductal anatomy of the inferior meatus in 6 children with a wide spectrum of NLD obstructions were imaged by computed tomographic scans and then reconstructed in a 3-dimensional viewer. Images were taken from prior axial (5 children) or coronal (1 child) computed tomographic facial scans at 0.625- or 1.25-mm mm resolution, respectively.Results 
                  The axial computed tomographic images and 3-dimensional reconstructions showed bony obstructions of the distal NLD in 3 children, membranous obstructions of the distal NLD in 1 child, and a postductal obstruction in the inferior meatus in 1 child. One child had a combined soft tissue obstruction of the NLD and post-NLD obstruction.Conclusions 
                  This study provides anatomic evidence of a bony or membranous obstruction at the distal portion of the NLD or of a postductal obstruction at the inferior meatus in children with congenital NLD obstruction.
SN  - 0003-9950
M3  - doi: 10.1001/archophthalmol.2012.36
UR  - http://dx.doi.org/10.1001/archophthalmol.2012.36
ER  -