<unk><unk> s are diagnosed by histomorphologic examination, by pathologists. Grossly, they are, usually, small unilocular cysts that contain clear, straw-coloured fluid. However, they may sometimes be multilocular. Microscopically, the cyst lining consists of a simple epithelium, whose cells may be either: *be columnar and tall and contain cilia, resembling normal tubal epithelium *be cuboidal and have no cilia, resembling ovarian surface epithelium Microscopical images File:Ovarian<unk><unk>  - alt -- low mag.jpg File:Ovarian<unk><unk>  -- intermed mag.jpg File:Ovarian<unk><unk>  - alt -- intermed mag.jpg File:Ovarian<unk><unk>  - alt -- high mag.jpg File:Ovarian<unk><unk>  -- high mag.jpg File:Ovarian<unk><unk>  -- very high mag.jpg File:Ovarian<unk><unk>  -- extremely high mag.jpg
Ovarian serous cystadenoma
Ovarian fibroma
Ovarian mucinous tumor
Follicular cyst of ovary
Ovarian cyst
Corpus luteum cyst
Clear-cell ovarian carcinoma
Ovarian germ cell tumors