Preoperative MR imaging for differentiation of immature from mature ovarian teratomas.
- Author:
Joo Hyuk CHOI
1
;
Seo Yun TONG
;
Min Jeung KIM
;
Jong Sup PARK
;
Yong Taik LIM
;
Jin Hong KIM
;
Sung Eun RHA
;
Mee Ran KIM
Author Information
1. Department of Obstetrics and Gynecology, The Catholic University of Korea, Seoul, Korea. mrkim@catholic.ac.kr
- Publication Type:Original Article
- Keywords:
Teratoma;
Ovary;
Diagnosis;
Magnetic resonance imaging
- MeSH:
Diagnosis;
Female;
Humans;
Magnetic Resonance Imaging*;
Ovary;
Teratoma*
- From:Korean Journal of Obstetrics and Gynecology
2006;49(7):1547-1553
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The purpose of this study was to differentiate immature from mature ovarian teratomas, using magnetic resonance (MR) imaging and to evaluate the MR imaging appearance of immature teratomas. METHODS: The patients with pathologic diagnosis of ovarian teratomas between January 1995 and December 2005 were restrospectively reviewed for clinicopathologic characteristics. RESULTS: Of the 787 patients studied, 773 (98.2%) patients were mature cystic teratomas and 14 (1.8%) patients were immature teratomas. Ten patients with immature teratoma (71.4%) were diagnosed preoperatively and 4 patients (28.6%) were diagnosed postoperatively. Preoperative MRI was performed in 4of 14 patients surgically proved immature teratomas. At MR imaging, the immature teratomas characteristically have a large, irregular solid component containing coarse calcifications and numerous variable-sized cysts. Small punctuate foci of fat help diagnosing these tumors. CONCLUSION: Preoperative MR imaging are relatively specific in the detection of immature teratomas. This suggests that preoperative MR imaging is helpful in differentiating immature from mature ovarian teratomas.
