Radiology, Vol 171, 697-701, Copyright © 1989 by Radiological Society of North America

ARTICLES

Cystic teratoma of the ovary: CT detection

JN Buy, MA Ghossain, AA Moss, M Bazot, M Doucet, D Hugol, JB Truc, P Poitout and J Ecoiffier
Department of Radiology, Hotel Dieu de Paris, France.

Computed tomography (CT) was performed in 38 patients with 41 benign cystic teratomas of the ovary and two patients with malignant transformation. CT depicted all tumors. The presence of fat in 40 of 43 cases (93%), tooth or calcification in 24 of 43 (56%), Rokitansky protuberance in 35 of 43 (81%), tufts of hair in 28 of 43 (65%), and a fat-fluid level in five of 43 (12%) allowed a definite diagnosis of ovarian cystic teratoma in 42 of 43 cases (98%). In the two cases of malignancy, single large (greater than 10 cm) plugs (with uptake of contrast medium in one) with a cauliflower appearance and an irregular border forming an obtuse angle with the inner wall of the cyst suggested malignant transformation. In three cases of benign cystic teratoma, a mucinous tumor (one benign, one borderline, one malignant) arising in the same ovary was seen at pathologic examination but was only diagnosed with the help of CT in two of three cases. Thickening of the tube was noted in two cases of torsion of the adnexa. CT findings were compared with findings at radiography of the abdomen and hysterosalpingography in 30 cases, ultrasound in 31, and magnetic resonance imaging in three. This study demonstrated that CT was the best procedure for imaging cystic teratomas of the ovary.

This article has been cited by other articles:

				S. B. Park, J. K. Kim, K.-R. Kim, and K.-S. Cho Imaging Findings of Complications and Unusual Manifestations of Ovarian Teratomas RadioGraphics, July 1, 2008; 28(4): 969 - 983. [Abstract] [Full Text] [PDF]

				D. M. Sherer, H. Zinn, T. Gavrilescu, E. Abdelmalek, M. Hellmann, M. Sokolovski, and O. Abulafia Transvaginal Sonographic Diagnosis of a Large Retroperitoneal Pelvic Epidermoid Cyst (Monodermal Teratoma) J. Ultrasound Med., February 1, 2006; 25(2): 265 - 268. [Full Text] [PDF]

				S. R. Ismail An Evaluation of the Incidence of Right-Sided Ovarian Cystic Teratoma Visualized on Sonograms Journal of Diagnostic Medical Sonography, July 1, 2005; 21(4): 336 - 342. [Abstract] [PDF]

				J. Yu, A. S. Fulcher, M. A. Turner, and R. A. Halvorsen Helical CT Evaluation of Acute Right Lower Quadrant Pain: Part II, Uncommon Mimics of Appendicitis Am. J. Roentgenol., April 1, 2005; 184(4): 1143 - 1149. [Abstract] [Full Text] [PDF]

				J. M. Pereira, C. B. Sirlin, P. S. Pinto, and G. Casola CT and MR Imaging of Extrahepatic Fatty Masses of the Abdomen and Pelvis: Techniques, Diagnosis, Differential Diagnosis, and Pitfalls RadioGraphics, January 1, 2005; 25(1): 69 - 85. [Abstract] [Full Text] [PDF]

				S. E. Jung, J. M. Lee, S. E. Rha, J. Y. Byun, J. I. Jung, and S. T. Hahn CT and MR Imaging of Ovarian Tumors with Emphasis on Differential Diagnosis RadioGraphics, November 1, 2002; 22(6): 1305 - 1325. [Abstract] [Full Text] [PDF]

				P. Maslin, J. S. Luchs, J. Haas, and D. S. Katz Ovarian Teratoma with Malignant Transformation: CT Diagnosis Am. J. Roentgenol., June 1, 2002; 178(6): 1574 - 1574. [Full Text] [PDF]

				S. Kawamoto, K. Sato, H. Matsumoto, Y. Togo, Y. Ueda, J. Tanaka, and A. Heshiki Multiple Mobile Spherules in Mature Cystic Teratoma of the Ovary Am. J. Roentgenol., June 1, 2001; 176(6): 1455 - 1457. [Full Text] [PDF]

				E. K. Outwater, E. S. Siegelman, and J. L. Hunt Ovarian Teratomas: Tumor Types and Imaging Characteristics RadioGraphics, March 1, 2001; 21(2): 475 - 490. [Abstract] [Full Text] [PDF]

				Y.-Y. Jeong, E. K. Outwater, and H. K. Kang Imaging Evaluation of Ovarian Masses RadioGraphics, September 1, 2000; 20(5): 1445 - 1470. [Abstract] [Full Text] [PDF]