Papillary Thyroid Cancer from Lateral Aberrant Thyroid Masquerading as Cervical Metastasis from Larynx Cancer: A Case Report

Jeon Ha Choi; Choon Dong Kim; Eun Ju Kim; Seung Woo Kim

doi:10.11106/ijt.2015.8.2.190

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Choi, Kim, Kim, and Kim: Papillary Thyroid Cancer from Lateral Aberrant Thyroid Masquerading as Cervical Metastasis from Larynx Cancer: A Case Report

Case Report

Int J Thyroidol 2015;8(2):190-193.

Published online: 20 November 2015

DOI: https://doi.org/10.11106/ijt.2015.8.2.190

Papillary Thyroid Cancer from Lateral Aberrant Thyroid Masquerading as Cervical Metastasis from Larynx Cancer: A Case Report

Jeon Ha Choi¹, Choon Dong Kim¹, Eun Ju Kim², Seung Woo Kim^1,

¹Department of Otorhinolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center, Seoul, Korea

²Department of Pathology, Veterans Health Service Medical Center, Seoul, Korea

Correspondence: Seung Woo Kim, MD, Department of Otorhinolaryngology-Head and Neck Surgery, Veterans Health Service Medical Center, 53 Jinhwangdo-ro 61-gil, Gangdong-gu, Seoul 134-791, Korea Tel: 82-2-2225-1384, Fax: 82-2-2225–1385, E-mail: entzzang1020@daum.net

Received 2 February 2015 Revised 25 March 2015 Accepted 12 April 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aberrant or ectopic thyroid in lateral neck is a rare developmental anomaly. Furthermore, the primary thyroid carcinoma arising in ectopic thyroid is extremely rare, only a few cases have been reported so far in English literature. We report a 64-year-old male with left transglottic cancer and primary papillary carcinoma from lateral aberrant thyroid in left lateral neck. Preoperatively, we diagnosed as transglottic cancer with ipsilateral neck metastasis. The patient underwent total laryngectomy, left selective neck dissection and left thyroidectomy. Finally, the patient was diagnosed as left transglottic cancer and papillary carcinoma from lateral aberrant thyroid. Surgeons should take into account a primary ectopic thyroid carcinoma arising in lateral neck may co-exist with another type of head and neck tumor.

Keywords: Aberrant thyroid, Papillary cancer

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Fig. 1.

Preoperative imaging studies. (A) Neck CT scan shows 1.2×2.1 cm sized enhanced soft tissue mass in left true vocal cord (arrow). (B) Neck CT scan shows 1.3×1.2 cm sized nodule in left thyroid gland (arrow). (C) Neck CT scan shows 0.8×0.9 cm sized iso-dense round mass in left level III (arrow). (D) T2-weighted MRI shows slight high signal intensity mass in left level III (arrow). (E) Ultrasonographic image shows about 1×0.8 cm sized ovoid hypoechogenic nodule in the left lateral neck (asterik).

Fig. 2.

Preoperative PET CT scans. It shows strong FDG uptake on left vocal cord (standard uptake value, 20.4), mild uptake on left level III (SUV, 2.2) (white arrow).

Fig. 3.

Pathologic findings. (A) Gross photograph shows the specimen of total laryngectomy with left selective neck dissection and left thyroidectomy. The white arrow indicates small lymph node in level III. (B) Microscopic findings: The fronds of tissue have thin fibrovascular cores and an overall papillary pattern. The black arrow indicates papillary architectures (H&E, ×100).

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