Primary follicular thyroid carcinoma metastasis to the kidney and widespread dissemination: A case report.
Distant metastases are more common in follicular thyroid carcinoma (FC) than in papillary thyroid carcinoma. However, FC metastasis to the kidney with eggshell calcification, as observed in the present case, is rare. The current report presents a case of a 67-year-old woman exhibiting a solitary tumor in the mid pole of the left kidney. Radical nephrectomy was performed, as the tumor was diagnosed as a primary renal carcinoma using contrast-enhanced computed tomography. Once the tumor was confirmed to be FC, total thyroidectomy was performed. Following administration of an oral therapeutic dose of 100 mCi131I, functional imaging demonstrated the presence of multifocal metastases in the chest and abdomen. Euthyrox®was prescribed orally to aid normal thyroid function. Follow-up 6 months later using radionuclide imaging demonstrated the disappearance of the multifocal metastases in the chest and abdomen. The distant metastasis of FC may represent the initial symptom of the primary lesion, which was neglected. Ultrasound is an effective method to examine nodules located on the thyroid.
Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
DI-Ming
DM
Cai
Department of Resident Doctor Training, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Hui-Yao
HY
Wang
Department of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Yong
Y
Jiang
Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Shyam Sundar
SS
Parajuly
Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Y E
YE
Tian
Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Bu-Yun
BY
Ma
Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Yong-Zhong
YZ
Li
Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Bin
B
Song
Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Yan
Y
Luo
follicular thyroid carcinoma; metastases; papillary thyroid carcinoma