Figure 1: Struma ovarii (low power)
In this hyperaemic ovary multiple collapsed cysts filled by colloid and lined by a single layer of thyreocytes are observed. In the wall of the cysts, small groups of thyroid follicles are also present.
Figure 2: Struma ovarii (high power)
Small groups of thyroid follicles are present.
Figure3: Struma ovarii thyroglobulin (high power)
Thyroid follicles show strong staining for thyroglobulin.