Pleomorphic Adenoma of minor Salivary Gland arising from Thyroglossal Duct: Uncommon Presentation

Abstract

Introduction: Patent thyroglossal tract commonly appears as a midline neck swelling in form of Thyroglossal cyst. Presentation in form of pleomorphic adenoma has not yet been reported. The aim of this study is to present a case of clinically appearing as thyroglossal cyst which was reported as pleomorphic adenoma of minor salivary gland. Case Report: A 40 year old lady presented with midline neck swelling in suprahyoid region. Welling moved with deglutination and protrusion of tongue. Intraoperatively there was a fibrous band which attached the cyst through the hyoid bone to the tongue. Complete swelling was removed with body of hyoid bone and was sent for histopathology examination (HPE). Results: HPE of the mass revealed pleomorphic adenoma of minor salivary gland arising from thyroglossal duct. Literature search does not show any such evidence of pleomorphic adenoma arising from thyroglossal duct. Conclusion: Midline neck swelling which clinically appears a Thyroglossal cyst may rarely be pleomorphic adenoma.