Journal Information Journal ID (publisher-id): JKMS Journal ID (nlm-ta): J Korean Med Sci ISSN: 1011-8934 ISSN: 1598-6357 Publisher: The Korean Academy of Medical Sciences
Case of an Ectopic Thyroid Gland at the Lateral Neck Masquerading as a Metastatic Papillary Thyroid Carcinoma
Jae-Young Choi,
Jeong-Hoon Kim☒,
Department of Surgery, Kosin University College of Medicine, Busan, Korea.
☒
Address for correspondence: Jeong Hoon Kim, M.D. Department of Surgery, Kosin University College of Medicine, 34 Amnam-dong, Seo-gu, Busan 602-702,
Korea. Tel: +82.51-990-6462, Fax: +82.51-246-6093, Email: gskjh@hanafos.com
Abstract
Ectopic thyroid glands generally occur in the midline as a result of abnormal median migration, and their presence lateral to the midline is rare. We present one case of an ectopic thyroid gland masquerading as a lateral neck metastasis of a papillary thyroid carcinoma (PTC). In this case of a 54-yr-old woman with left PTC, we suspected left lateral neck metastasis on preoperative neck computed tomography. The patient underwent total thyroidectomy, central compartment neck dissection, and left modified radical neck dissection (MRND). The patient was diagnosed as having an accessory thyroid gland on the lateral neck on the final pathologic report. Surgeons should be aware of the existence of an ectopic thyroid gland in unusual locations.
Keywords: Ectopic Thyroid, Carcinoma, Papillary.
References
1.
Mansberger AR, Wei JP. Surgical embryology and anatomy of the thyroid and parathyroid glands. Surg Clin North Am 1993;73:727–746.
2.
Paresi RJ Jr, Saha D. Hashimoto's thyroiditis presenting as an enlarging submandibular mass in a patient with a lingual thyroid. Otolaryngol Head Neck Surg 2005;132:806–808.
3.
Basaria S, Westra WH, Cooper DS. Ectopic lingual thyroid masquerading as thyroid cancer metastases. J Clin Endocrinol Metab 2001;86:392–395.
4.
Aktolun C, Demir H, Berk F, Metin Kir K. Diagnosis of complete ectopic lingual thyroid with Tc-99m pertechnetate scintigraphy. Clin Nucl Med 2001;26:933–935.
5.
Goldstein B, Westra WH, Califano J. Multifocal papillary thyroid carcinoma arising in a lingual thyroid. Arch Otolaryngol Head Neck Surg 2002;128:1198–1200.
6.
Kumar R, Sharma S, Marwah A, Moorthy D, Dhanwal D, Malhotra A. Ectopic goiter masquerading as submandibular gland swelling: a case report and review of the literature. Clin Nucl Med 2001;26:306–309.
7.
Pritchyk KM, Thompson LD, Malekzadeh S. Endoscopic management of intratracheal ectopic thyroid. Otolaryngol Head Neck surg 2004;130:630–632.
8.
Hollander EJ, Visser MJ, van Baalen JM. Accessory thyroid gland at carotid bifurcation presenting as a carotid body tumor: case report and review of the literature. J Vasc Surg 2004;39:260–262.
9.
Kansal P, Sakati N, Rifai A, Woodhouse N. Lingual thyroid. Diagnosis and treatment. Arch Intern Med 1987;147:2046–2048.
10.
Carter LC, Uthman A, Drinnan AJ, Loree TR. Diagnostic dilemma involving calcification in the parapharyngeal space: metastatic thyroid carcinoma masquerading as a deep lobe parotid mass. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1997;84:697–702.