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Temporary Nonvisualization of Biopsy-Proven Papillary Thyroid Carcinoma

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Author(s)
이상권권선영
Alternative Author(s)
Lee, Sang KwonKwon, Sun Young
Publication Year
2009
Abstract
With the introduction of high-resolution sonographic equipment and fine-needle aspiration biopsy (FNAB), many thyroid cancers that are too small to be palpated are being diagnosed. Most papillary thyroid carcinoma (PTC) is hypoechoic on gray scale sonography. Postpartum thyroiditis is an autoimmune disorder of the thyroid gland, which occurs in the first year after parturition. Hypoechogenicity of the thyroid gland is the main sonographic feature of postpartum thyroiditis.1 Thus, hypoechoic PTC may be masked by hypoechoic background thyroid parenchyma of postpartum thyroiditis and may be unnoticed on sonography.

Here we report a case of biopsy-proven PTC that was not visualized temporarily on sonography during the active phase of postpartum thyroiditis and was again visualized after improvement of active thyroiditis, along with gray scale and power Doppler sonographic findings.
Department
Dept. of Radiology (영상의학)
Dept. of Pathology (병리학)
Publisher
School of Medicine
Citation
Journal of Ultrasound in Medicine, Vol.28(4) : 527-531, 2009
Type
Article
ISSN
0278-4297
DOI
10.7863/jum.2009.28.4.527
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/34302
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