J Korean Soc Radiol.  2018 Dec;79(6):337-339. 10.3348/jksr.2018.79.6.337.

Paraovarian Serous Borderline Tumor: A Case Report

• Hwang ET
• Kim SH
• Kim MJ
• Kang YN

• KMID: 2427382
• DOI: http://doi.org/10.3348/jksr.2018.79.6.337

Abstract

Parovarian cyst is usually simple cyst, and accounts for 10%-20% of adnexal masses. Borderline or malignant parovarian tumor is rare, and it contains papillary projection at the smooth inner wall. We report the ultrasonography, CT and MRI findings of a parovarian serous borderline tumor in 19-year-old female presenting left lower quadrant abdominal discomfort for 2 days.

MeSH Terms

Broad Ligament
Fallopian Tubes
Female
Humans
Magnetic Resonance Imaging
Mullerian Ducts
Parovarian Cyst
Ultrasonography
Young Adult

Figure

• 

  Fig. 1 Paraovarian serous borderline tumor in a 19-year-old woman, presenting with left lower quadrant abdominal discomfort. A. The transabdominal ultrasonography shows an approximately 12-cm-sized unilocular anechoic cyst, with papillary projection (arrow) and echogenic debris. B. The contrast enhanced CT image shows well-defined unilocular fluid-attenuating mass, with papillary projection (arrow). The papillary projection shows subtle contrast enhancement. C. The axial T2-weighted MR image shows a well-defined unilocular hyperintense mass with papillary projection (arrow). Both ovaries (*) are separated by the mass. D. The axial T1-weighted MR image shows a hypointense mass and a papillary projection (arrow). E. The axial contrast enhanced T1-weighted MR image shows an enhancing papillary projection (arrow). F. Microscopically (hematoxylin and eosin, × 200), the thin and thick papillary projections consist of thick collagenous stroma and covered stratified cuboidal epithelium with multiple psammoma bodies (arrows). The lining cuboidal epithelial cells show slightly stratified, enlarged, hyperchromatic nuclei with prominent nucleoli and a thick nuclear membrane (arrowheads). However, there is no obvious stromal invasion or microinvasion.

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