Geç Tanı Konulan Konjenital Boyun Kütlesi: Yaşlılarda Tiroglossal Kanal Kisti

Thyroglossal duct cysts (TGDCs) are congenital neck anomalies commonly seen in children and young adults, with rare occurrence in individuals over 60, accounting for only 0.6% of cases. This report describes a 69-year-old male presenting with a submental mass, later diagnosed as TGDC alongside prostate carcinoma. The patient underwent a Sistrunk procedure involving excision of the cyst, duct, and part of the hyoid bone. At six months postoperatively, no recurrence or complications were observed. This case highlights the rare late-life presentation of TGDCs, which may mimic other pathologies on imaging. Accurate diagnosis and management require clinical expertise and intraoperative judgment. While no metastasis was detected here, malignancy should be considered in patients with a history of cancer.