The sensitivity and specificity of a new formula to distinguish endometrioid type endometrial carcinoma from ovarian endometrial carcinoma

Sadako Nishimura, Yoichi M. Ito, Hiroshi Tsuda, Yoshitaka Ohnishi, Fumio Kataoka, Hiroyuki Nomura, Tatsuyuki Chiyoda, Atsushi Suzuki, Nobuyuki Susumu, Daisuke Aoki, Masayuki Hatae

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Objectives: Endometrioid type adenocarcinoma sometimes occupies both endometrium and ovary and in some cases the origin cannot be determined. Study design: In this study, we established a formula to distinguish ovarian endometrioid cancer (EOC) from endometrioid type endometrial cancer (EEC), based on our previous report of cyclin and KI67 expression pattern by immunohistochemistry of 36 EECc and 37 OECc by the logistic regression. We calculated the diagnostic accuracy using 92 test samples retrospectively and finally could diagnose the origin of 16 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and could be determined by Scully's criteria, and 15 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and Scully's criteria were not usuful retrospectively. Results: The estimated formula is as follows: Logit(Prob(EOC)) = -1.1437 - 0.0853 CNA + 0.0423 CNB + 0.173 CND1 + 0.0129 CNE + 0.0224 CNF + 0.0508 KI67, where Prob(EOC) is the probability that a clinical sample is EOC. If Prob(EOC) is larger than 0.5, the diagnosis is ovarian cancer; if less than 0.5 it is endometrial cancer. Finally, using the formula, 37 of 48 EECs (77.1%) and 33 of 44 EOCs (75.0%) were correctly classified, with an accuracy of 76.1% (p < 0.0001), retrospectively. In 12 of the 16 cases (75%) who could be determined by Scully's criteria, the origin determined by Scully's criteria was concordant with the origin determined by the formula retrospectively. In the other 15 cases, 12 cases were judged as ovary/ovary, 2 cases were judged as uterus/uterus and 1 case was judged as uterus/ovary. Conclusion: The formula we established was thought to be useful to distinguish the origin of the cases in whom endometrioid type adenocarcinoma arises in both ovary and endometrium.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalEuropean Journal of Obstetrics Gynecology and Reproductive Biology
Volume148
Issue number1
DOIs
Publication statusPublished - 2010 Jan

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Endometrioid Carcinoma
Endometrial Neoplasms
Ovary
Sensitivity and Specificity
Endometrium
Uterus
Ovarian Neoplasms
Neoplasms
Cyclins
European Union
Logistic Models
Immunohistochemistry

Keywords

  • Cyclin A
  • Cyclin B1
  • Cyclin D1
  • Cyclin E
  • Cyclin F
  • KI67

ASJC Scopus subject areas

  • Obstetrics and Gynaecology
  • Reproductive Medicine

Cite this

The sensitivity and specificity of a new formula to distinguish endometrioid type endometrial carcinoma from ovarian endometrial carcinoma. / Nishimura, Sadako; Ito, Yoichi M.; Tsuda, Hiroshi; Ohnishi, Yoshitaka; Kataoka, Fumio; Nomura, Hiroyuki; Chiyoda, Tatsuyuki; Suzuki, Atsushi; Susumu, Nobuyuki; Aoki, Daisuke; Hatae, Masayuki.

In: European Journal of Obstetrics Gynecology and Reproductive Biology, Vol. 148, No. 1, 01.2010, p. 67-72.

Research output: Contribution to journalArticle

Nishimura, Sadako ; Ito, Yoichi M. ; Tsuda, Hiroshi ; Ohnishi, Yoshitaka ; Kataoka, Fumio ; Nomura, Hiroyuki ; Chiyoda, Tatsuyuki ; Suzuki, Atsushi ; Susumu, Nobuyuki ; Aoki, Daisuke ; Hatae, Masayuki. / The sensitivity and specificity of a new formula to distinguish endometrioid type endometrial carcinoma from ovarian endometrial carcinoma. In: European Journal of Obstetrics Gynecology and Reproductive Biology. 2010 ; Vol. 148, No. 1. pp. 67-72.
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abstract = "Objectives: Endometrioid type adenocarcinoma sometimes occupies both endometrium and ovary and in some cases the origin cannot be determined. Study design: In this study, we established a formula to distinguish ovarian endometrioid cancer (EOC) from endometrioid type endometrial cancer (EEC), based on our previous report of cyclin and KI67 expression pattern by immunohistochemistry of 36 EECc and 37 OECc by the logistic regression. We calculated the diagnostic accuracy using 92 test samples retrospectively and finally could diagnose the origin of 16 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and could be determined by Scully's criteria, and 15 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and Scully's criteria were not usuful retrospectively. Results: The estimated formula is as follows: Logit(Prob(EOC)) = -1.1437 - 0.0853 CNA + 0.0423 CNB + 0.173 CND1 + 0.0129 CNE + 0.0224 CNF + 0.0508 KI67, where Prob(EOC) is the probability that a clinical sample is EOC. If Prob(EOC) is larger than 0.5, the diagnosis is ovarian cancer; if less than 0.5 it is endometrial cancer. Finally, using the formula, 37 of 48 EECs (77.1{\%}) and 33 of 44 EOCs (75.0{\%}) were correctly classified, with an accuracy of 76.1{\%} (p < 0.0001), retrospectively. In 12 of the 16 cases (75{\%}) who could be determined by Scully's criteria, the origin determined by Scully's criteria was concordant with the origin determined by the formula retrospectively. In the other 15 cases, 12 cases were judged as ovary/ovary, 2 cases were judged as uterus/uterus and 1 case was judged as uterus/ovary. Conclusion: The formula we established was thought to be useful to distinguish the origin of the cases in whom endometrioid type adenocarcinoma arises in both ovary and endometrium.",
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AU - Ito, Yoichi M.

AU - Tsuda, Hiroshi

AU - Ohnishi, Yoshitaka

AU - Kataoka, Fumio

AU - Nomura, Hiroyuki

AU - Chiyoda, Tatsuyuki

AU - Suzuki, Atsushi

AU - Susumu, Nobuyuki

AU - Aoki, Daisuke

AU - Hatae, Masayuki

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N2 - Objectives: Endometrioid type adenocarcinoma sometimes occupies both endometrium and ovary and in some cases the origin cannot be determined. Study design: In this study, we established a formula to distinguish ovarian endometrioid cancer (EOC) from endometrioid type endometrial cancer (EEC), based on our previous report of cyclin and KI67 expression pattern by immunohistochemistry of 36 EECc and 37 OECc by the logistic regression. We calculated the diagnostic accuracy using 92 test samples retrospectively and finally could diagnose the origin of 16 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and could be determined by Scully's criteria, and 15 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and Scully's criteria were not usuful retrospectively. Results: The estimated formula is as follows: Logit(Prob(EOC)) = -1.1437 - 0.0853 CNA + 0.0423 CNB + 0.173 CND1 + 0.0129 CNE + 0.0224 CNF + 0.0508 KI67, where Prob(EOC) is the probability that a clinical sample is EOC. If Prob(EOC) is larger than 0.5, the diagnosis is ovarian cancer; if less than 0.5 it is endometrial cancer. Finally, using the formula, 37 of 48 EECs (77.1%) and 33 of 44 EOCs (75.0%) were correctly classified, with an accuracy of 76.1% (p < 0.0001), retrospectively. In 12 of the 16 cases (75%) who could be determined by Scully's criteria, the origin determined by Scully's criteria was concordant with the origin determined by the formula retrospectively. In the other 15 cases, 12 cases were judged as ovary/ovary, 2 cases were judged as uterus/uterus and 1 case was judged as uterus/ovary. Conclusion: The formula we established was thought to be useful to distinguish the origin of the cases in whom endometrioid type adenocarcinoma arises in both ovary and endometrium.

AB - Objectives: Endometrioid type adenocarcinoma sometimes occupies both endometrium and ovary and in some cases the origin cannot be determined. Study design: In this study, we established a formula to distinguish ovarian endometrioid cancer (EOC) from endometrioid type endometrial cancer (EEC), based on our previous report of cyclin and KI67 expression pattern by immunohistochemistry of 36 EECc and 37 OECc by the logistic regression. We calculated the diagnostic accuracy using 92 test samples retrospectively and finally could diagnose the origin of 16 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and could be determined by Scully's criteria, and 15 cases in whom endometrioid type adenocarcinoma arose in both ovary and endometrium and Scully's criteria were not usuful retrospectively. Results: The estimated formula is as follows: Logit(Prob(EOC)) = -1.1437 - 0.0853 CNA + 0.0423 CNB + 0.173 CND1 + 0.0129 CNE + 0.0224 CNF + 0.0508 KI67, where Prob(EOC) is the probability that a clinical sample is EOC. If Prob(EOC) is larger than 0.5, the diagnosis is ovarian cancer; if less than 0.5 it is endometrial cancer. Finally, using the formula, 37 of 48 EECs (77.1%) and 33 of 44 EOCs (75.0%) were correctly classified, with an accuracy of 76.1% (p < 0.0001), retrospectively. In 12 of the 16 cases (75%) who could be determined by Scully's criteria, the origin determined by Scully's criteria was concordant with the origin determined by the formula retrospectively. In the other 15 cases, 12 cases were judged as ovary/ovary, 2 cases were judged as uterus/uterus and 1 case was judged as uterus/ovary. Conclusion: The formula we established was thought to be useful to distinguish the origin of the cases in whom endometrioid type adenocarcinoma arises in both ovary and endometrium.

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