Fig. 2. Mixed papillary thyroid carcinoma and strumal carcinoid arising from mature cystic teratoma. (A) Mature teratoma showing seromucinous glands, skin and cartilage. (B) Papillary thyroid carcinoma with nuclear grooves and inclusions. (C) Carcinoid component showing organoid structures with minimal cytologic atypia. (D) Positive immunohistochemistry for synaptophysin to carcinoid component (lower part). (E) Upper part showing papillary carcinoma and lower part with carcinoid component. Benign mucinous epithelium between them. (F) Left part showing papillary carcinoma and Right part with carcinoid component. Benign mucinous epithelium between them.

Int J Thyroidol 2023;16:134-8 https://doi.org/10.11106/ijt.2023.16.1.134

© 2023 Int J Thyroidol