Abstract
Background
The purpose of this study was to evaluate computed tomographic findings of struma ovarii.
Methods
Computed tomography (CT) scans of 13 pathologically proven struma ovarii were retrospectively reviewed by two radiologists in consensus. Scans were evaluated for the laterality, size, mass configuration, margins, internal architecture, presence of intracystic high attenuation lesions on precontrast scans, and cyst wall enhancement.
Results
The mean size of the tumors was 11.4 cm (range 4.7–21.0 cm). Mainly cystic (n = 8, 61.5%) or cystic (n = 5, 38.5%) appearance was common to all the tumors. All tumors were unilateral and had smooth margins. The most common internal architecture in the tumors was multicystic architecture (n = 11, 84.6%). Eleven tumors (84.6%) showed a high attenuation lesion in the cyst portion of the mass on precontrast scans and the attenuation ranged from 92.2 to 120.5 Hounsfield units (HU) (mean, 106.8 ± 8.8 HU). The cyst wall showed no (n = 7, 53.8%), moderate (n = 5, 38.5%), or marked (n = 1, 7.7%) enhancement after administration of contrast medium.
Conclusions
On CT scans, struma ovarii appeared most often as a smooth marginated multicystic mass with a high attenuation lesion on precontrast scans and no or moderate cyst wall enhancement.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Kempers RD, Dockerty MB, Hoffman DL, et al. (1970) Struma ovarii-ascitic, hyperthyroid, and asymptomatic syndromes. Ann Intern Med 72:883–893
Outwater EK, Siegelman ES, Hunt JL (2001) Ovarian teratomas: tumor types and imaging characteristics. Radiographics 21:475–490
Roth LM, Talerman A (2007) The enigma of struma ovarii. Pathology 39:139–146
Roth LM, Talerman A (2006) Recent advances in the pathology and classification of ovarian germ cell tumors. Int J Gynecol Pathol 25:305–320
Szyfelbein WM, Young RH, Scully RE (1995) Struma ovarii simulating ovarian tumors of other types. A report of 30 cases. Am J Surg Pathol 19:21–29
Dohke M, Watanabe Y, Takahashi A et al. (1997) Struma ovarii: MR findings. J Comput Assist Tomogr 21:265–267
Hahn ST, Park SH, Bahk YW, et al. (1991) Struma ovarii simulating a teratodermoid cyst. Computed tomographic findings in one case. Radiologe 31:89–91
Joja I, Asakawa T, Mitsumori A et al. (1998) Struma ovarii: appearance on MR images. Abdom Imaging 23:652–656
Matsuki M, Kaji Y, Matsuo M, et al. (2000) Struma ovarii: MRI findings. Br J Radiol 73:87–90
Matsumoto F, Yoshioka H, Hamada T, et al. (1990) Struma ovarii: CT and MR findings. J Comput Assist Tomogr 14:310–312
Yamashita Y, Hatanaka Y, Takahashi M, et al. (1997) Struma ovarii: MR appearances. Abdom Imaging 22:100–102
Som PM, Curtin HD (2003) Head and neck imaging. Philadelphia, PA: Mosby
Grandet PJ, Remi MH (2000) Struma ovarii with hyperthyroidism. Clin Nucl Med 25:763–765
March DE, Desai AG, Park CH, et al. (1988) Struma ovarii: hyperthyroidism in a postmenopausal woman. J Nucl Med 29:263–265
Marcus CC, Marcus SL (1961) Struma ovarii. A report of 7 cases and a review of the subject. Am J Obstet Gynecol 81:752–762
Iida Y, Konishi J, Harioka T, et al. (1983) Thyroid CT number and its relationship to iodine concentration. Radiology 147:793–795
Imanishi Y, Ehara N, Mori J et al. (1991) Measurement of thyroid iodine by CT. J Comput Assist Tomogr 15:287–290
Imanishi Y, Ehara N, Shinagawa T et al. (2000) Correlation of CT values, iodine concentration, and histological changes in the thyroid. J Comput Assist Tomogr 24:322–326
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jung, S.I., Kim, Y.J., Lee, M.W. et al. Struma ovarii: CT findings. Abdom Imaging 33, 740–743 (2008). https://doi.org/10.1007/s00261-008-9362-1
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00261-008-9362-1