Open AccessNasolacrimal Duct Obstruction on <sup>131</sup>I SPECT/CT: Atypical False-positive Paranasal Radioiodine Uptake as a Complication of Single-dose RAI Treatment
Author(s) -
Nuh Filizoğlu,
Kevser Öksüzoğlu,
Salih Özgüven,
Onur Buğdaycı,
Tanju Yusuf Erdıl
Publication year - 2022
Publication title -
molecular imaging and radionuclide therapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.292
H-Index - 7
eISSN - 2147-1959
pISSN - 2146-1414
DOI - 10.4274/mirt.galenos.2021.68926
Subject(s) - medicine , nasolacrimal duct , nasolacrimal duct obstruction , nuclear medicine , computed tomography , complication , radiology , surgery
Nasolacrimal duct obstruction (NLDO) is a rare complication after radioiodine therapy and may cause false positive 131 I uptake at the point of obstruction in 131 I whole body scan. Here, we report a 59-year-old female patient with papillary thyroid cancer treated with total thyroidectomy followed by 131 I therapy. 131 I whole body scan revealed focal uptake in the head. Single photon emission computed tomography/computed tomography (CT) showed focal uptake at the right proximal nasolacrimal duct. The ophthalmologic examination and the diagnostic maxillofacial CT confirmed the diagnosis of NLDO.