title: Nested stromal-epithelial tumor (NSET) of the liver: a case report of an extremely rare tumor.
abstract: Malignant mixed tumors of the liver in adults are extremely rare. To our knowledge, only a few cases have been reported in the literature. Nested stromal-epithelial tumors (NSET) of the liver are characterized by non-hepatocytic, non-biliary tumors with nests of epithelial and spindle cells, an associated myofibroblastic stroma, as well as variable calcifications and ossifications. We report a case of NSET of the liver affecting a young woman and provide detailed histological and clinical follow-up data, adding an additional case of this extremely rare pathology to the literature.
authors.affiliation: Department of Surgery and Transplantation, Liver and Multi-organ Transplantation, Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy. glgrazi@med.unibo.it
authors.forename: Gian Luca
authors.initials: GL
authors.lastname: Grazi
authors.forename: Gaetano
authors.initials: G
authors.lastname: Vetrone
authors.forename: Antonia
authors.initials: A
authors.lastname: d'Errico
authors.forename: Giacomo
authors.initials: G
authors.lastname: Caprara
authors.forename: Giorgio
authors.initials: G
authors.lastname: Ercolani
authors.forename: Matteo
authors.initials: M
authors.lastname: Cescon
authors.forename: Matteo
authors.initials: M
authors.lastname: Ravaioli
authors.forename: Massimo
authors.initials: M
authors.lastname: Del Gaudio
authors.forename: Marco
authors.initials: M
authors.lastname: Vivarelli
authors.forename: Matteo
authors.initials: M
authors.lastname: Zanello
authors.forename: Antonio Daniele
authors.initials: AD
authors.lastname: Pinna
mesh_terms: D000328:Adult; D004847:Epithelial Cells / Q000473:pathology*; D005260:Female; D006498:Hepatectomy; D006801:Humans; D008099:Liver / Q000473:pathology / Q000601:surgery; D008113:Liver Neoplasms / Q000473:pathology* / Q000601:surgery; D018193:Neoplasms, Complex and Mixed / Q000473:pathology* / Q000601:surgery; D017154:Stromal Cells / Q000473:pathology*; D016896:Treatment Outcome