Cysts and cystoms of the ovary

Ovarian neoplasms from an anatomical point of view are divided into two large groups: epithelial formations and formations of a number of connective tissue, depending on whether the parenchyma or the ovarian stroma is involved in their development. The former include cysts, cystomas, endotheliomas and cancers, while the latter include fibromas, sarcomas, and very rare angiomas, fibroids, enchondromas and osteomas. The sources of the development of ovarian tumors can sometimes also serve as formations that do not actually belong either to its parenchyma or to its stroma, but are only the remnants of organs previously existing during embryonic life that were located next to it. With the passage of time, these organs atrophy and sometimes only appear to have preserved their parts, entering through the hylus ovarii far into its stroma.