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Case Report
A Case of needle-tract implantation of hepatocellular carcinoma in the ovary after radiofrequency ablation
Seong Woon Yoon1, Jin-Sook Jeong2, Su Young Kim3, Sung Wook Lee3, Seun Ja Park4
Kosin Medical Journal 2017;32(2):251-257.
Published online: January 19, 2017

1Department of Internal Medicine, Daedong Hospital, Busan, Korea

2Division of Pathology, Dong-A University College Of Medicine, Busan, Korea

3Division of Gastroenterology and Hepatology, Dong-A University College of Medicine, Busan, Korea

4Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea

Corresponding Author: Sung wook Lee, Division of Gastroenterology and Hepatology, Dong-A University College of Medicine, 26, Daesingongwon-ro, Seo-gu, Busan 49201, Korea Tel: +82-51-240-2983 Fax: +82-51-240-2087 E-mail:
• Received: May 19, 2016   • Accepted: May 25, 2016

Copyright © 2017 Kosin University School of Medicine Proceedings

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Radiofrequency ablation (RFA), a local ablative modality, is gaining acceptance for the treatment of liver malignancies. Despite a relatively low complication rate, tumor seeding resulting from RFA in hepatocellular carcinoma (HCC) treatment can occur. A 44-year-old woman was diagnosed with HCC. Spiral computed tomography (CT) revealed a 2.3 × 2.0-cm mass in the S5 segment, which was treated with RFA on May, 2005. Follow-up imaging, performed at 6-month intervals after RFA, showed complete tumor necrosis. In October 2009, CT revealed a heterogeneous mass, 5.7 cm in diameter, in the right ovary. Since the lesion was limited to the right ovary without evidence of spread, bilateral salpingo-oophorectomy was performed. Histopathology indicated that the metastatic spread from the HCC to the ovary was positive for hepatocyte-specific antigen on immunohistochemistry. The ovary is a rare site for HCC metastasis. Moreover, needle tract implantation of HCC in the ovary is very rare.
Fig. 1.
(A) Abdominopelvic computed tomography (CT) shows a low- density 2.3 cm mass (before radiofrequency ablation (RFA). (B) low-density lesion on the portal phase in S5 of the liver (post RFA). (C) Abdominopelvic CT reveals a 5.7 cm heterogeneous mass. (D) T2-weighted magnetic resonance image shows a high signal intensity mass in right ovary.
Fig. 1.
(A) Tissue from ovarian mass (Hematoxylin and Eosin Staining (H-&E) stain, x2). The ovarian mass compose of fragmented ovarian cortex, and tumor mass with hemorrhage. (B) Mid-magnification (H&-E stain, x20). The ovarian mass is of hepatocellular carcinoma with hemorrhage. (Long arrow: HCC, short arrow: Ovary)
Fig. 3.
Higher magnification (A, H&-E; B, hepatocyte specific antigen immunohistochemistry (HSA); C, Carcinoembryonic Antigen immunohistochemistry (CEA), x200). (A) The hepatocellular carcinoma metastatic to vary shows thick trabecular and occasionally pseudo glandular architecture, clear cell type and nuclear grade 2/3 (common/worst). (B) Representing clear HAS (+) and (C) bile canalicular type of CEA.
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      A Case of needle-tract implantation of hepatocellular carcinoma in the ovary after radiofrequency ablation
      Kosin Med J. 2017;32(2):251-257.   Published online January 19, 2017
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