Struma ovarii
Template:Infobox medical condition (new) A struma ovarii (literally: goitre of the ovary) is a rare form of monodermal teratoma that contains mostly thyroid tissue, which may cause hyperthyroidism.<ref name="pmid19265502">Template:Cite journal</ref>
Despite its name, struma ovarii is not restricted to the ovary.
The vast majority of struma ovarii are benign tumours; however, malignant tumours of this type are found in a small percentage of cases.<ref>Template:EMedicine</ref>
Radiologic findingsEdit
The ultrasound features of struma ovarii are nonspecific, but a heterogeneous, predominantly solid mass may be seen. Ultrasound demonstrates a complex appearance with multiple cystic and solid areas, findings that reflect the gross pathologic appearance of the tumor.
Magnetic resonance imaging (MRI) 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.<ref name="pmid11259710">Template:Cite journal</ref>
Additional imagesEdit
- Struma ovarii - low mag.jpg
Low magnification
- Struma ovarii - high mag.jpg
Higher magnification
See alsoEdit
ReferencesEdit
External linksEdit
Template:Medical resources Template:Germ cell tumors Template:Endocrine gland neoplasia Template:Female genital neoplasia