Dermoid cysts are the most common teratomatous lesion; however, they infrequently arise in the head and neck region. Very rarely, dermoid cysts have been described in the thyrohyoid region, masquerading as a thyroid nodule. We describe the case of a 31-year-old woman with a lateral neck mass, associated with the thyroid gland inferiorly, which was excised and found to be a dermoid cyst. We then review the pathogenesis of dermoid cysts in this region, as well as review diagnosis and treatment of dermoid cysts of the head and neck.
Ro EY, Thomas RM, Isaacson GC. Giant dermoid cyst of the neck can mimic a cystic hygroma: Using MRI to differentiate cystic neck lesions. Int J of Pediatr Otorhinolaryngol 2007; 71: 653–658.CrossRefGoogle Scholar