Classification

 non-neoplastic ovarian cysts and functional ovarian cysts

• follicular cyst (cysic follicle)
• multiple luteinized follicular cysts (theca-lutein cysts; hyperreactio luteinalis)
• large solitary luteinized follicular cyst
• corpus luteum cysts
• polycystic ovaries (sclerocystic ovaries)

 ovarian inclusion cysts

• surface epithelial inclusion cysts

 developmental cysts

• hydatids of Morgagni
• parovarian cysts and paratubal cysts

 cysts of the rete ovarii
 ovarian epidermoid cysts
 ovarian endometriotic cyst

 cystic tumors

• serous cystadenoma
• mucinous cystadenoma
• ovarian teratoma
  • ovarian dermoid cyst

According to the lining cells

 granulosa and theca layers: luteinic cyst
 nonluteinized granulosa cells: follicular cyst
 luteinized granulosa cells: luteinic cyst
 ciliated cylindric epithelial cells: serous cystadenoma
 mucinous cylindric epithelial cells: mucinous cystadenoma

Miscellaneous

 hemorrhagic ovarian cysts

• ovarian endometriotic cyst
• hemorrhagic corpus luteum cysts