title: Nucleolar canalicular structure in extrauterine endometriosis.
abstract: Under the influence of progesterone the unique intranuclear structure known as the nucleolar canalicular structure (NCS) develops in the human endometrium. This organelle was not described previously outside the uterus. In this report the cases of two patients in whom the NCS appeared in extrauterine endometriosis are presented.
mesh_terms: D000328:Adult; D002466:Cell Nucleolus / Q000648:ultrastructure*; D004715:Endometriosis / Q000648:ultrastructure*; D004717:Endometrium / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008875:Middle Aged