PMC6350569_01
CT neck at the level of vertebra C4 showing a 1.6 x 2.0 x 2.9 cm, enhancing, elliptically shaped mass located in the midline, within the anterior soft tissues of the neck.
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fig1
The mass enhanced similarly to the thyroid tissue, read by the radiologist as suspicious for ectopic thyroid (Figure 1).
H&E stain at 4x magnification of anterior neck mass demonstrating epithelial capsule without cilia surrounding papillary architecture and few normal thyroid components. No evidence of cystic components is seen. The histological stain shows that the anterior neck mass is consistent with an ectopic papillary thyroid carcinoma.
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fig2
A frozen section showed papillary architecture adjacent to normal thyroid architecture with both tissue types surrounded by an epithelial capsule that was devoid of cilia (Figure 2).