J Gynecol Oncol.  2009 Sep;20(3):176-180. 10.3802/jgo.2009.20.3.176.

Clinical analysis of intra-operative frozen section proven borderline tumors of the ovary

Affiliations
  • 1Department of Obstetrics and Gynecology, The Catholic University of Korea School of Medicine, Seoul, Korea. jspark@catholic.ac.kr
  • 2Department of Pathology, The Catholic University of Korea School of Medicine, Seoul, Korea.
  • 3Department of Biostatistics, The Catholic University of Korea School of Medicine, Seoul, Korea.

Abstract


OBJECTIVE
We have assessed the accuracy of frozen section diagnosis and the outcomes of misdiagnosis in borderline tumors of the ovary (BTO) according to frozen section. METHODS: All pathology reports with BTO in both frozen and permanent section analyses between 1994 and 2008 at Seoul St. Mary's Hospital were reviewed. Frozen section diagnosis and permanent section histology reports were compared. Logistic regression models were conducted to evaluate the correlation of patient and tumor characteristics with diagnostic accuracy. The clinical outcomes of misdiagnosis were evaluated. RESULTS: Agreement between frozen section diagnosis and permanent histology was observed in 63 of 101 patients (62.4%). Among the 76 patients with frozen section proven BTO, under-diagnosis and over-diagnosis occurred in 8 of 76 (10.5%) and 5 of 76 patients (6.6%), respectively. Mean diameter of under-diagnosed tumor was larger than matched BTO (21.0+/-11.4 vs. 13.7+/-7.1; p=0.021). Tumor size 20 cm was determined as the optimal cut-off for under-diagnosis (50% sensitivity, 87.3% specificity). Among 8 under-diagnosed patients, no patient relapsed. Among 5 over-diagnosed patients, 2 patients < 35 years of age had fertility-preserving surgery. CONCLUSION: Although frozen section diagnosis is an important and reliable tool in the clinical management of patients with ovarian tumors, over-diagnosis and under-diagnosis are relatively frequent in frozen proven BTO. Surgical decision-making for BTO based on frozen section diagnosis should be done carefully, especially in large tumors.

Keyword

Borderline tumors of the ovary; Frozen section diagnosis; Accuracy

MeSH Terms

Diagnostic Errors
Female
Frozen Sections
Humans
Logistic Models
Ovary

Figure

  • Fig. 1 ROC curve analysis for over-diagnosis.


Cited by  2 articles

Accuracy of frozen section diagnosis and factors associated with final pathological diagnosis upgrade of mucinous ovarian tumors
Jeong-Yeol Park, Sang-Hun Lee, Kyu-Rae Kim, Young-Tak Kim, Joo-Hyun Nam
J Gynecol Oncol. 2019;30(6):e95.    doi: 10.3802/jgo.2019.30.e95.

Accuracy of frozen section diagnosis and factors associated with final pathological diagnosis upgrade of mucinous ovarian tumors
Jeong-Yeol Park, Sang-Hun Lee, Kyu-Rae Kim, Young-Tak Kim, Joo-Hyun Nam
J Gynecol Oncol. 2019;30(6):.    doi: 10.3802/jgo.2019.30.e95.


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