title: Squamous carcinoma metastatic to the sternum.
abstract: A 63-year-old man had a 10 x 16-cm sternal mass 18 months after a second aortocoronary bypass operation. The resected lesion was a metastatic tumor of squamous histology. No primary tumor was found. The diagnostic work-up and treatment options are presented.
authors.affiliation: Department of Surgery, St. Louis University Medical Center, Missouri.
authors.forename: S E
authors.initials: SE
authors.lastname: D'Orazio
authors.forename: K S
authors.initials: KS
authors.lastname: Naunheim
authors.forename: C E
authors.initials: CE
authors.lastname: Paletta
authors.forename: H B
authors.initials: HB
authors.lastname: Barner
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000556:secondary*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D009382:Neoplasms, Unknown Primary; D013249:Sternum / Q000473:pathology*; D013899:Thoracic Neoplasms / Q000556:secondary*