thyroglossal duct cyst with malignancy

Thyroglossal

duct pathology and mimics. Thyroglossal duct cyst with malignancy. Axial CT image demonstrates a thyroglossal duct cyst, which is predominantly cystic, but also has soft tissue attenuation (arrow) and calcifications (arrowhead) at the posterior aspect. Resection revealed papillary carcinoma

Thyroglossal

duct pathology and mimics. Thyroglossal ductal cyst with malignancy. Axial (a) and coronal (b) contrast-enhanced CT images of the neck show an irregularly thick-walled thyroglossal duct cyst with enhancing mural nodule (arrows). Resection revealed papillary carcinoma

Thyroglossal

duct pathology and mimics. Malignancy of thyroglossal duct remnant. a Axial non-contrast CT image demonstrates a soft tissue mass adjacent to the posterior margin of the hyoid bone (arrow). b Axial fused PET/CT image demonstrates FDG avidity in this lesion. Pathology proven papillary carcinoma