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Thyroid metastasis from rectal carcinoma coexisting with hashimoto's thyroiditis: Gray-scale and power Doppler sonographic findings

✍ Scribed by Takashima, Shodayu; Takayama, Fumiyoshi; Wang, Qian; Kobayashi, Shinya; Sone, Shusuke

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 498 KB
Volume: 26
Category: Article
ISSN: 0091-2751
DOI: 10.1002/(sici)1097-0096(199809)26:7<361::aid-jcu7>3.0.co;2-7

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✦ Synopsis

We present the gray-scale and power Doppler sonographic findings in a case of rectal carcinoma metastasis to the thyroid that mimicked a primary thyroid neoplasm and coexisted with Hashimoto's thyroiditis in a 67-year-old man. Gray-scale sonography revealed a hypoechoic mass with illdefined borders in the left lobe of the thyroid; the mass extended through the isthmus to the right lobe. Sonography also showed multiple enlarged cervical lymph nodes. Power Doppler sonography showed increased flow in the nontumorous thyroid gland and decreased flow in the tumor. This contributed to the differentiation between the tumor and the remainder of the thyroid, which was involved with Hashimoto's thyroiditis.

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