Related Experiment Video
Updated: Jun 18, 2026

Spontaneous Murine Model of Anaplastic Thyroid Cancer
Published on: February 3, 2023
[Benign hepatic cyst mimicking thyroid carcinoma metastasis]
Ana Paula Cançado Gonçalves1, Carolina Souza Jorge, Jader Pereira Resende
1Hospital Felício Rocho, Belo Horizonte, MG, Brasil.
Introduction:
The follow-up of differentiated thyroid carcinoma (DTC) for detecting persistent or recurrent disease is based on iodine whole body scan (WBS), the evaluation of the tumor marker thyroglobulin (Tg), the anti-thyroglobulin antibody (anti-Tg) and neck ultrasonography (US). Well known false-positive causes of WBS include inflammatory processes, some non-thyroid tumors, kidney or even sebaceous cysts .
Methods:
We reported a case of false-positive WBS, after therapeutic dose of (131I) NaI.
Results:
We enphasize the importance of recognizing benign liver cysts mimicking DTC metastasis.
Conclusions:
False-positive and negative results may occur with WBS and must be recognized to avoid mismanagement.
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