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"Ovarian Vascular Pedicle" Sign Revealing Organ of Origin of a Pelvic Mass Lesion on Helical CT

¹ All authors: Department of Diagnostic Radiology, Ulsan University Hospital, Ulsan University College of Medicine, 290-3 Choenha-Dong, Dong-Gu, Ulsan, 682-714, Korea.

View larger version (110K): [in a new window]   Fig. 1A. —67-year-old woman with benign serous ovarian tumor. Axial single-detector helical CT was performed from common iliac vessels to left ovarian vascular pedicle. CT scans show asymmetrically enlarged left gonadal vein (arrow, A) anterior to psoas muscle, continuously and asymmetrically enlarged left gonadal vein (arrow, B) anterior to psoas muscle, and left gonadal vein (arrows, C) directly joining left ovarian cystic tumor through ovarian vascular pedicle.

View larger version (112K): [in a new window]   Fig. 1B. —67-year-old woman with benign serous ovarian tumor. Axial single-detector helical CT was performed from common iliac vessels to left ovarian vascular pedicle. CT scans show asymmetrically enlarged left gonadal vein (arrow, A) anterior to psoas muscle, continuously and asymmetrically enlarged left gonadal vein (arrow, B) anterior to psoas muscle, and left gonadal vein (arrows, C) directly joining left ovarian cystic tumor through ovarian vascular pedicle.

View larger version (124K): [in a new window]   Fig. 1C. —67-year-old woman with benign serous ovarian tumor. Axial single-detector helical CT was performed from common iliac vessels to left ovarian vascular pedicle. CT scans show asymmetrically enlarged left gonadal vein (arrow, A) anterior to psoas muscle, continuously and asymmetrically enlarged left gonadal vein (arrow, B) anterior to psoas muscle, and left gonadal vein (arrows, C) directly joining left ovarian cystic tumor through ovarian vascular pedicle.

View larger version (124K): [in a new window]   Fig. 2A. —51-year-old woman with degenerated pedunculated subserosal uterine myoma. Axial single-detector helical CT was performed at different levels. U = uterine corpus. CT scans show asymmetrically enlarged right gonadal vein (arrow, A), right gonadal vein merging into right side of tumor (arrows, B), and large tumor (T) inseparable from uterine corpus (C).

View larger version (129K): [in a new window]   Fig. 2B. —51-year-old woman with degenerated pedunculated subserosal uterine myoma. Axial single-detector helical CT was performed at different levels. U = uterine corpus. CT scans show asymmetrically enlarged right gonadal vein (arrow, A), right gonadal vein merging into right side of tumor (arrows, B), and large tumor (T) inseparable from uterine corpus (C).

View larger version (117K): [in a new window]   Fig. 2C. —51-year-old woman with degenerated pedunculated subserosal uterine myoma. Axial single-detector helical CT was performed at different levels. U = uterine corpus. CT scans show asymmetrically enlarged right gonadal vein (arrow, A), right gonadal vein merging into right side of tumor (arrows, B), and large tumor (T) inseparable from uterine corpus (C).

View larger version (92K): [in a new window]   Fig. 3A. —36-year-old woman with Krukenberg's tumor. Axial single-detector helical CT was performed from common iliac vessels to uterine corpus. CT scans show asymmetrically enlarged left gonadal vein (arrow, A), left gonadal vein (arrow, B) merging into ovarian hilum of left ovarian solid mass, and large solid ovarian tumor (T) inseparable from uterine corpus (U) (C).

View larger version (97K): [in a new window]   Fig. 3B. —36-year-old woman with Krukenberg's tumor. Axial single-detector helical CT was performed from common iliac vessels to uterine corpus. CT scans show asymmetrically enlarged left gonadal vein (arrow, A), left gonadal vein (arrow, B) merging into ovarian hilum of left ovarian solid mass, and large solid ovarian tumor (T) inseparable from uterine corpus (U) (C).

View larger version (132K): [in a new window]   Fig. 3C. —36-year-old woman with Krukenberg's tumor. Axial single-detector helical CT was performed from common iliac vessels to uterine corpus. CT scans show asymmetrically enlarged left gonadal vein (arrow, A), left gonadal vein (arrow, B) merging into ovarian hilum of left ovarian solid mass, and large solid ovarian tumor (T) inseparable from uterine corpus (U) (C).

View larger version (113K): [in a new window]   Fig. 4A. —72-year-old woman with malignant serous ovarian tumor. Axial single-detector helical CT was performed at different levels. CT scan shows dominantly right-sided large ovarian cystic tumor but asymmetrically enlarged left gonadal vein (arrow).

View larger version (138K): [in a new window]   Fig. 4B. —72-year-old woman with malignant serous ovarian tumor. Axial single-detector helical CT was performed at different levels. CT scan shows still dominantly right-sided large ovarian cystic tumor with continuously and asymmetrically enlarged left gonadal vein (arrow).

View larger version (139K): [in a new window]   Fig. 4C. —72-year-old woman with malignant serous ovarian tumor. Axial single-detector helical CT was performed at different levels. CT scan shows enlarged left gonadal vein (arrows) directly joining ovarian tumor through left ovarian vascular pedicle.

View larger version (127K): [in a new window]   Fig. 5A. —72-year-old woman with fibrothecoma and surgically confirmed torsion with hemorrhagic infarction. Axial single-detector helical CT was performed from common iliac vessels to left ovarian vascular pedicle. CT scan shows asymmetric enlarged left gonadal vein (arrow).

View larger version (125K): [in a new window]   Fig. 5B. —72-year-old woman with fibrothecoma and surgically confirmed torsion with hemorrhagic infarction. Axial single-detector helical CT was performed from common iliac vessels to left ovarian vascular pedicle. CT scan shows abnormally thickened left ovarian vascular pedicle (arrows).

View larger version (131K): [in a new window]   Fig. 5C. —72-year-old woman with fibrothecoma and surgically confirmed torsion with hemorrhagic infarction. Axial single-detector helical CT was performed from common iliac vessels to left ovarian vascular pedicle. CT scan shows left ovarian vascular pedicle (arrow) discontinuous with tumor in ovarian hilum in that ovarian pedicular vessels appear "floating" within ovarian hilum.

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