PMC5320317_01
Sonography shows an image suggestive of thyroglossal duct cyst containing debris and an eccentric small hyperechoic solid area.
CRIE2017-8541078.001.jpg
PMC5320317_01_CRIE2017-8541078.001.jpg
fig1
This structure measured 1.6 cm3 with absence of flow on Doppler-sonography (Figure 1).
Thyroglossal duct cyst carcinoma. (a) and (b) Low power view of the cyst containing the papillary carcinoma (HE, 40x). (c) The papillae were sometimes edematous (HE, 40x). (d) The tumor had papillae, but also some follicles (HE, 100x). (e) Nuclei with pseudoinclusions (arrow) and ground glass appearance (stars) (HE, 400x). (f) Nuclear pseudoinclusion (HE, 400x). (g) Nuclear pseudoinclusion (arrow) (HE, 1000x). (h) Nuclear groove (arrow) (HE, 1000x).
CRIE2017-8541078.002.jpg
PMC5320317_01_CRIE2017-8541078.002.jpg
fig2
The cells had ovoid, ground glass nuclei ("Orphan Annie" eye), sometimes with grooves and pseudoinclusions (Figures 2(a)-2(h)).