J Korean Soc Radiol.  2016 Apr;74(4):259-262. 10.3348/jksr.2016.74.4.259.

Mature Ovarian Teratoma with Large Floating Fat Globules

• Son HM
• Kim SH
• Hwang IS

• KMID: 2208784
• DOI: http://doi.org/10.3348/jksr.2016.74.4.259

Abstract

Mature ovarian teratoma (dermoid cyst), a germ cell neoplasm, is one of the most common ovarian tumors. It is composed of derivatives of three germ cell layers. A mature ovarian teratoma with intracystic fat globules is rare. The pathogenesis on the formation of fat globules is unclear. Here we present a pathologically proven cystic ovarian teratoma with three large floating fat globules in a young woman with CT and MR findings.

MeSH Terms

Female
Germ Cells
Humans
Ovary
Teratoma*

Figure

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  Fig. 1 CT images of a 19-year-old female with a cystic teratoma in the left ovary. A. Nonenhanced CT image showing an approximately 126 × 86 mm sized cystic mass in the left ovary with fat globules at density of -10 Hounsfield unit. B. Enhanced coronal CT image showing three intracystic globules without enhancement. * = fat globules

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  Fig. 2 MR images of a 19-year-old female with a cystic teratoma in the left ovary. A. Axial T1-weighted image MR image showing three globules in the cystic mass. B. Opposed phase gradient echo MR image showing signal suppression of the three intracystic globules. * = fat globules

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  Fig. 3 Microscopic finding of the cystic mass in the left ovary. The lining epithelium of cyst consist squamous epithelium with keratin and sebaceous glands (black arrows) are present in the subepithelial area (hematoxylin and eosin, × 40).

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