A Review of 58 Ovarian Tumors Treated at a Single Children's Hospital

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  • Jimbo Takahiro
    Department of Pediatric Surgery, Saitama Children's Medical Center
  • Uchida Hiroo
    Department of Pediatric Surgery, Saitama Children's Medical Center
  • Kawashima Hiroshi
    Department of Pediatric Surgery, Saitama Children's Medical Center
  • Tanaka Yujiro
    Department of Pediatric Surgery, Saitama Children's Medical Center
  • Sato Kaori
    Department of Pediatric Surgery, Saitama Children's Medical Center
  • Takazawa Shinya
    Department of Pediatric Surgery, Saitama Children's Medical Center
  • Amano Hizuru
    Department of Pediatric Surgery, Saitama Children's Medical Center

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Other Title
  • 当院における小児卵巣腫瘍58例の検討
  • 当院[埼玉県立小児医療センター]における小児卵巣腫瘍58例の検討
  • トウ イン サイタマ ケンリツ ショウニ イリョウ センター ニ オケル ショウニ ランソウ シュヨウ 58レイ ノ ケントウ

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Purpose: The aim of this study is to review our experiences with ovarian tumors at our children's hospital. Materials and Methods: A total of 58 children treated with ovarian tumors from January 1999 to October 2010, except for neonate cases, were retrospectively analyzed. We evaluated distribution of age at onset, the clinical outcome, and the rates and timings of recurrence of ovarian tumors. Results: Mean age was 10.6 years with 53% occurring between 10 and 15 years. We encountered 3 cases (5.2%) of bilateral ovarian tumors. Forty-eight benign neoplasms (82.8%), 3 borderline tumors (5.2%), and 7 malignancies (12%) were present. All recurrences occurred in 10 patients (17.2%). Among benign tumors, 7 out of 48 patients developed recurrent ovarian neoplasms at a median time of 33 months (2-61 months). Twenty-one patients (36.2%) with ovarian torsion were identified and underwent emergency surgery. Acute abdominal pain was the most common symptom, seen in 81% of those patients. Previously, the oophorectomy was routinely performed in 10 black-bluish ovaries after detorsion during surgery. Tumor enucleation with an ovary-sparing approach was performed in 11 cases. Recently, the ovaries that were black-bluish after detorsion were preserved and followed closely. The black-bluish ovaries were significantly twisted to a high degree, compared with ovary-sparing cases. Conclusion: Ten malignancies (17%) and 21 torsion cases (36%) were present among our pediatric ovarian tumors. Three out of seven recurrences in benign neoplasms occurred after more than 50 months. A long-term follow-up might be necessary for early recognition of postoperative recurrences. Now, we closely follow spared ovaries which looked like black-bluish after detorsion.

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