%0 Journal Article %T Concurrent Papillary Thyroid Carcinoma and Synovial Carcinoma of the Neck in an Adult Male %J Iranian Journal of Otorhinolaryngology %I Mashhad University of Medical Sciences (MUMS) %Z 2251-7251 %A Iftikhar, Haissan %A Akhtar, Shabbir %A Uddin, Nasir %D 2019 %\ 01/01/2019 %V 31 %N 1 %P 69-72 %! Concurrent Papillary Thyroid Carcinoma and Synovial Carcinoma of the Neck in an Adult Male %K Head and neck %K Sarcoma neck %K Thyroid cancer %R 10.22038/ijorl.2018.25263.1827 %X Introduction: Synovial sarcoma makes up 8–10% of all soft tissue sarcomas, and constitutes 3–10% of all sarcomas occurring in the head and neck region. It shows male predominance (3:2), and the mean age of presentation is 30 years.   Case Report: A 51-year-old gentleman presented with right-sided neck swelling which had been progressively increasing in size for the past 2 years. A computed tomography (CT) scan revealed a large heterogeneously enhancing mass on the right side of the neck measuring 7.5 × 6.2 cm. Biopsy of an enlarged node revealed papillary thyroid carcinoma. The patient subsequently underwent total thyroidectomy with right neck dissection. Final histopathology revealed a papillary carcinoma of the thyroid, and the right-sided mass was shown to be monophasic synovial sarcoma.   Conclusion: We present a case of a concurrent pathology of neck papillary thyroid carcinoma with monophasic synovial sarcoma. We experienced difficulty in diagnosis and misdirection due to raised C-reactive protein (CRP) levels, until final histopathology of the neck mass. %U https://ijorl.mums.ac.ir/article_12122_1fe6e71a45153d6e833fc0c69523b7a7.pdf