Yolk sac tumor of the ovary: CT findings.
BACKGROUND
The purpose of this study was to evaluate computed tomographic (CT) findings of pathologically proven yolk sac tumors of the ovary.


METHODS
Two radiologists retrospectively evaluated CT findings of 10 yolk sac tumors in consensus. The presence of bright dot sign; laterality; presence of necrosis; size, margin, and shape of the mass were analyzed.


RESULTS
Mean age of patients was 22 years (ranging from 11 to 34 years). Mean size of the tumors was 14 cm (ranging from 11.1 to 18.5 cm). All 10 tumors showed bright dot sign, necrotic portion, and smooth margin in post-contrast CT scan. All the tumors were unilateral. Nine of 10 tumors showed oval shape.


CONCLUSIONS
On CT scans, ovarian yolk sac tumors appeared as large, unilateral, smooth marginated mass with bright dot sign and necrotic portion.
Choi
Hyuck Jae
HJ
Department of Radiology, National Cancer Center, Goyang, Gyeonggi, South Korea.
Moon
Min Hoan
MH
Kim
Seung Hyup
SH
Cho
Jeong Yeon
JY
Jung
Dae Chul
DC
Hong
Sung Ran
SR
D000293:Adolescent; D000328:Adult; D002648:Child; D003287:Contrast Media; D018240:Endodermal Sinus Tumor / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007472:Iohexol / Q000031:analogs & derivatives; D015588:Observer Variation; D010051:Ovarian Neoplasms / Q000000981:diagnostic imaging*; D010053:Ovary / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement / Q000379:methods; D012189:Retrospective Studies; D036542:Tomography, Spiral Computed / Q000379:methods*; D055815:Young Adult
D003287:Contrast Media; D007472:Iohexol; C038192:iopromide