A histopathologic study u·as made on 189 cystic tumors of the wary that were
obtained during a period of twelve years, from 1957 to 1968, at the Department of
Pathology, College of Medicine, Seoul National University.
The 189 cystic tumors of the ovary consist of 165 benign and 24 malignant tumors.
The 165 benign tumors were classified histologically into simple cystoma (10.1%), serous
stadenoma (20.1%), mucinous cystadenoma (16.9%), and benign cystic teratoma (40.2%).
And the 24 malignant tumors were also divided into serous.(5.0%) and mucinous
cystadenocarcinomas (6.9%).
The age distribution of these benign and malignant cystic tumors showed the highest
incidence in the period of reproductive life, being found 83.7% between the years of 20∼
50, with the average of women in benign cystic tumors occurred of 34.6 years and 43.1
years in malignant.
The tumors occurred bilaterally in 11.0%. The side predilection was not observed.
The size of cystic tumors varies considerably. The majority of the tumors measures 6
to 15 cm. in diameter. The smallest was a papillary serous cystadenoma of 1.5 cm. in
diameter, and the largest one was a mucinous cystadenoma of 32 cm. in diameter.
The relationship of papillation and locularity in serous and mucinous varieties of the
cystic tumors was discussed.
,Among 68 benign cystic teratomas, ectodermal elements were found in all,
mesodermal elements in 79.4% and endodermal ones in 41.2% of the cases.
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