Table I. The histopathology of ovarian masses included in the study in the training and test groups.

Histopathology		N (total N = 187)
Benign (n = 112)	Mature teratoma	23
	Endometrioma/endometriosis	15
	Mucinous cystadenoma	23
	Functional cyst	5
	Ovarian fibroma	6
	Serous cystadenoma	21
	Serous cystadenofibroma	13
	Other benign	6 (1 tubal abscess, 1 Brenner tumour, 1 Multilocular peritoneal inclusion cyst MPIC, 1 Mucinous cystadenofibroma, 1 subserous adenomyoma, 1 hydrosalpinx)
Malignant (n = 75)	Borderline mucinous tumour	15
	Borderline serous tumour	6
	Serous cyst/adenocarcinoma	28
	Mucinous cyst/adenocarcinoma	3
	Endometrioid adenocarcinoma	6
	Other ovarian cancer	17 (1 Lymphoma, 7 metastatic tumours (3 intestinal, 1 breast, 1 pancreatic, 1 gastric, and 1 lung cancers), 1 leiomyosarcoma,1 stromal tumour, 1 germ cell tumour, 2 clear cell carcinomas, 2 carcinosarcomas, 1 immature teratomas, 1 endometrial cancer)