|Micrograph of a struma ovarii. Characteristic thyroid follicles are seen on the right, and ovarian stroma on the left. H&E stain.|
Despite its name, struma ovarii is not restricted to the ovary.
The ultrasound (US) features of struma ovarii are nonspecific, but a heterogeneous, predominantly solid mass may be seen. US demonstrates a complex appearance with multiple cystic and solid areas, findings that reflect the gross pathologic appearance of the tumor.
Magnetic resonance imaging findings may be more characteristic: The cystic spaces demonstrate both high and low signal intensity on T1- and T2-weighted images. Some of the cystic spaces may demonstrate low signal intensity on both T1- and T2-weighted images due to the thick, gelatinous colloid of the struma. No fat is evident in these lesions.
- Kim D, Cho HC, Park JW, et al. (March 2009). "Struma ovarii and peritoneal strumosis with thyrotoxicosis". Thyroid. 19 (3): 305–8. doi:10.1089/thy.2008.0307. PMID 19265502.
- Struma Ovarii at eMedicine
- Outwater EK, Siegelman ES, Hunt JL, et al. (Mar–Apr 2001). "Ovarian teratomas: tumor types and imaging characteristics". Radiographics. 21 (2): 475–90. doi:10.1148/radiographics.21.2.g01mr09475. PMID 11259710.