Primary Source #110:

Sudharsanan S, Vijayakumar C, Dharanya S, Elamurugan TP, Manwar AS. A Rare Case of Carcinoma in the Thyroglossal Duct Cyst of an Elderly Patient. Cureus. 2017;9(6):e1365. Published 2017 Jun 19. doi:10.7759/cureus.1365

***
Feel free to use any of the images showcased on this website. Please cite both this website (UNC School of Medicine Dermatology Image Library - http://med.unc.edu/dil) and the primary source of the image as references.
***