RT Journal Article SR Electronic T1 Primary Nasolacrimal Duct Obstruction Visualized on 123I Preablation Scan for Papillary Thyroid Carcinoma JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 77 OP 78 DO 10.2967/jnmt.119.235010 VO 48 IS 1 A1 Kay, Matthew D. A1 Morris-Wiseman, Lilah F. A1 Beazer, Alex A1 Winegar, Blair A. A1 Kuo, Phillip H. YR 2020 UL http://tech.snmjournals.org/content/48/1/77.abstract AB A 56-y-old man underwent total thyroidectomy and bilateral central and right lateral neck dissection for papillary thyroid carcinoma with lymph nodes metastases. Before radioiodine ablation, a 123I scan established the diagnosis of primary nasolacrimal duct obstruction (dacryostenosis).