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An unusual presentation of papillary thyroid carcinoma in the lateral aspect of the neck
並列摘要
Introduction: Papillary thyroid carcinoma (PTC) is the most common thyroid cancer. Papillary thyroid carcinoma presenting as a lateral neck mass in the presence of a normal thyroid is extremely rare. Ectopic thyroid tissue can arise in the lateral aspect of the neck, and, therefore, PTC may arise at this site in ectopic tissue. Alternatively, cervical cystic lymph node metastasis may be a first presentation of occult PTC. Case Report: A case of a 28-year-old male was referred for investigation of a painless left-sided neck swelling. Excisional biopsy revealed PTC, and completion surgery revealed papillary microcarcinoma and a further lymph node metastasis in the definitive resection specimen. Conclusion: This case highlights that PTC always needs to be considered in the differential diagnosis of lateral neck swellings even in presence of a normal thyroid. Establishing the exact etiology of lateral cystic PTC can be challenging.
延伸閱讀
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