Malignant Transformation of a Mature Cystic Ovarian Teratoma into Thyroid Carcinoma, Mucinous Adenocarcinoma, and Strumal Carcinoid: A Case Report and Literature Review
Figure 1
Malignant components in the teratoma. (a) Benign large bowel component of mature cystic teratoma. (b) Strumal carcinoid, strongly positive for synaptophysin stain (inset); (c) follicular variant of papillary thyroid carcinoma with positive nuclear staining for TTF1 (inset). (d) Infiltrating mucinous adenocarcinoma.
