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Table 3 Characteristics of additional tubo-ovarian cancer (a) cases and (b) deaths identified through adjudication that did not have a national cancer registration

From: Completeness and accuracy of national cancer and death registration for outcome ascertainment in trials—an ovarian cancer exemplar

Registry assigned Designation Following Outcomes Review
Number Histology Morphology Stage
(a) Diagnosis (n = 47)
Neoplasm of uncertain behavior of ovary (ICD-10 D39.1) 27 Borderline 1 Brenner 1 Stage I
3 Endometrioid 3 Stage 1a
9 Mucinous 7 Stage 1a, 2 Stage 1c
14 Serous 9 Stage 1a, 3 Stage 1c, 1 Stage 111a, 1 Stage 111b
8 Non-epithelial 7 Granulosa cell 4 Stage Ia, 2 Stage 1c, 1 Stage IIb
1 Carcinoid 1 Stage Ia
1 Invasive epithelial 1 Carcinosarcoma 1 Stage IIIc
Malignant neoplasm without specification of site (ICD-10 C80) 9 Invasive epithelial 2 Carcinoma 2 Stage IV
1 Carcinosarcoma 1 Stage IV
1 Endometroid 1 Stage IV
5 Serous 1 Stage Ia, 1 Stage IIIa, 1 Stage IIIb, 1 Stage IIIc, 1 Stage IV
Other primarya 1 Invasive epithelial 1 Serous 1 Stage IIIc
1 1 Clear cell 1 Stage IIb
(b) Cause of death (n = 40)
Malignant neoplasm without specification of site (ICD-10 C80) 27 Invasive epithelial 1 Adenocarcinoma 1 Stage IV
1 Mucinous 1 Stage IV
1 Carcinosarcoma 1 Stage IIIc
10 Carcinoma 5 Stage IIIc; 5 Stage IV
14 Serous 1 Stage Ic; 1 Stage IIIb; 8 Stage IIIc; 3 Stage IV;
Multiple registrations which include malignant neoplasm without specification of site (ICD-10 C80) as well as nonovarian cancer 10 Invasive epithelial 2 Carcinoma 1 Stage IIIc; 1 Stage IV
5 Serous 4 Stage IIIc; 1 Stage IIIa
1 Clear cell 1 Stage 2b
1 Fallopian tube cancer (serous) 1 Stage IIIc
1 Serous 1 Stage III
Malignant neoplasm of ill defined,secondary and unspecified sites (abdomen) (icd-10 C76.2) 1 Invasive epithelial 1 Carcinoma 1 Stage IIIc
Carcinoma in situ of other and unspecified genital organs (ICD-10 D07.9) 1 1 Serous 1 Stage IIIb
Neoplasm of uncertain behavior of ovary (ICD-10 D39.1) 1 1 Serous 1 Stage II b
  1. aMalignant neoplasm of pelvis (ICD10 - C76.3); Malignant neoplasm of retroperitoneum (ICD10 - C48.0)