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J Comput Assist Tomogr. 2006 Nov-Dec;30(6):875-9.

CT findings of clear cell carcinoma of the ovary.

Author information

  • 1Research Institute and Hospital, National Cancer Center, Goyang, Gyenggi, Korea. hjchoi@ncc.re.kr



The purpose of this article was to retrospectively evaluate computed tomographic (CT) findings in patients with pathologically proved clear cell carcinoma of the ovary.


CT scans of seven patients (age range, 28-79 years; mean age, 46 years) with nine lesions of histologically proved primary ovarian clear cell carcinoma of the ovary were retrospectively evaluated by two radiologists in consensus. Scans were evaluated for the laterality, size, mass characteristic, margin, attenuation of the cystic portion, internal architecture, and presence of lumen protruding mass.


Tumors were unilateral in five patients. The average size of the tumors was 8.6 cm (range, 2.6-12.1 cm). All the masses showed mainly cystic appearance. All nine masses had smooth margin. Average attenuation of the cystic portion of the masses was 24.2 HU (Hounsfield unit) (range, 13-34 HU). Tumors usually appeared as unilocular cystic mass (n=6). Lumen protruding masses appeared in seven tumors.


On CT scans, primary ovarian clear cell carcinomas appeared as large unilocular, mainly cystic, smooth marginated mass with lumen protruding solid portion and high-attenuated cystic portion.

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