title: Primary pineal yolk sac tumor: ultrastructural and immunohistochemical features--case report.
mesh_terms: D000293:Adolescent; D001932:Brain Neoplasms / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008649:Mesonephroma / Q000648:ultrastructure*; D010870:Pineal Gland