title: [Study of 6 cases with retroperitoneal primary neoplasms].
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000601:surgery; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000601:surgery; D008067:Lipoma / Q000601:surgery; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000601:surgery*; D013724:Teratoma / Q000601:surgery
vernacular_title: Kum vuprosa za retroperitonealnite purvichni tumori s prinos na shest sluchaia.