title: An unusual case of a retrorectal neuroendocrine tumor with high- and low-grade differentiation.
authors.forename: Birgit
authors.initials: B
authors.lastname: Harbeck
authors.forename: Martin
authors.initials: M
authors.lastname: Anlauf
authors.forename: Günter
authors.initials: G
authors.lastname: Klöppel
authors.forename: Dieter
authors.initials: D
authors.lastname: Bröring
authors.forename: Hendrik
authors.initials: H
authors.lastname: Lehnert
authors.forename: Heiner
authors.initials: H
authors.lastname: Mönig
mesh_terms: D000328:Adult; D002454:Cell Differentiation; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D060787:Neoplasm Grading; D018358:Neuroendocrine Tumors / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography