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. Author manuscript; available in PMC: 2018 Oct 19.
Published in final edited form as: Gynecol Oncol. 2016 Dec 6;144(2):405–413. doi: 10.1016/j.ygyno.2016.10.019

Table 1. Ovarian cancer histological groups and subtypesa.

a No information on grade was available, therefore all endometrioid tumours were classified as type I epithelial.

b No information on grade was available, therefore all serous tumours were classified as type II epithelial

c Borderline tumours (ICD-O-3 codes: 8442, 8444, 8451, 8462, 8463, 8472, 8473) were excluded from the analysis of distribution of histological subtypes (see text).

Histological group Histological subtype ICD-O-3 morphology code
Type I epithelial Clear cell carcinoma 8005, 8310, 8443, 9110
Endometrioid carcinomab 8380, 8382-8383, 8560, 8570
Mucinous carcinoma 8470-8471, 8480-8482, 8490
Squamous carcinoma 8051-8084
Transitional cell or Brenner carcinoma 8120-8131, 9000
Type II epithelial Serous carcinomac 8050, 8441, 8450, 8460-8461
Mixed epithelial-stromal carcinoma 8313, 8323, 8381, 8930-8991, 9010-9030
Undifferentiated or other epithelial 8010-8015, 8020-8046, 8090-8110, 8140-8231, 8246-8300, 8311-8312, 8314-8322, 8324-8325, 8336-8337, 8341-8375, 8384-8440, 8452-8454, 8500-8551, 8561-8562, 8571-8589
Germ cell Germ cell 8240-8245, 8330-8335, 8340, 9060-9105, 9380-523
Sex cord-stromal Sex cord-stromal 8590-8671, 8810
Other specific non-epithelial Other specific non-epithelial 8680-8806, 8811-8921, 9040-9055, 9120-9373, 9530-9589
Non-specific Non-specific 8000-8004