Rokitanski protruberences are seen in -
Rokitansky nodules/protuberance: These are one or more foci of rounded nodular structure/s, covered with hair protruding into the lumen of the cyst. These are also known as the mammillary body (tubercle) and dermoid nipple. It shows the greatest variety of tissue types of all three germ cell layers and teeth tend to be located at this site.
Mucinous carcinoma
Teratoma
Epidermal cystoids adenoma
Papillary carcinoma
miscellaneous