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| US Diagnosis of Mature Cystic Teratomas of the Ovary:Morphologic Analysis of 112 Pathologically Proven Cases |
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| Nami Choi, M.D., Chan Kyo Kim,M.D.,* Byung Kuan Park, M.D.* |
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| Ddpartment of Radiology, Soonchunhyang University Bucheon Hospital *Department of Radiology, Sunsun Medical Center, Sungkyunkwan University School of Medicine |
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| PURPOSE : To establish the morphologic US classification of mature cystic teratoma of the ovary and document the reliable sonographic features in the diagnosis of this neoplasm.
MATERIALS and METHODS : The study subjects comprised 103 patients with 112 pathologically proven, mature cystic teratomas. All patients underwent preoperative pelvic US in transabdominal and/or transvaginal approach. One radiologist retrospectively analyzed the US findings
and the tumors were classified into 6 groups based on the morphologic US features. For each tumor, additional US findings, including posterior sonic shadowing, fat-fluid level and vascularity, were also evaluated.
RESULTS : The common US patterns were hyperechoic area within a cyst (type IV; 36 tumors,32.1%), solid and cystic mass (type V; 32 tumors, 28.5%), and a diffusely hyperechoic mass
(type VI; 25 tumors, 22.3%). All solid and cystic masses (type V) showed hyperechogenicity in at least one solid portion, resulting in hyperechogenicity within a mass being seen in 93 of
the 112 tumors (83.0%), with pure cystic masses (types I-III) accounted for the remaining 19 tumors (17.1 %). Of the 112 tumors, 68 (67.1%) showed posterior sonic shadowing which was
demonstrated only in the hyperechoic area of types IV-VI.
CONCLUSION : Any adnexal masses representing a hyperechoic area within a cyst, solid and cystic tumors containing hyperechogenicity or diffusely hyperechoic mass, especially when accompanied by posterior sonic shadowing, should be suspected as indicative of mature cystic teratoma. |
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| Keyword : Ovary, neoplasms, Ultrasound (US) |
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pdf파일 : 200625-179-184.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2006 ; 25 (4) : p.179-184
