title: Round cell liposarcoma arising in the left foot: MRI and PET findings.
abstract: Liposarcomas are one of the most common soft-tissue sarcomas and commonly arise in the deep soft tissues of the extremities and retroperitoneum; however, the occurrence of liposarcomas in the foot or ankle is exceedingly rare. In this article, we present a 52-year-old man with round cell liposarcoma arising in the left foot. This tumor presented unusual manifestations of secondary osseous involvement in the metatarsal and tarsal bones of the left foot and solitary lymph node metastasis at the para-aortic region. Magnetic resonance imaging (MRI) and [(18)F]-fluoro-deoxy-glucose positron emission tomography computed tomography (FDG PET-CT) evaluation was considered to be useful for tumor grading and staging in this case.
authors.affiliation: Department of Radiology, Toho University Sakura Medical Center, 564-1 Shimoshizu, Sakura 285-8741, Japan.
authors.forename: Hideyasu
authors.initials: H
authors.lastname: Kudo
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Inaoka
authors.forename: Wataru
authors.initials: W
authors.lastname: Tokuyama
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Hiruta
authors.forename: Koichi
authors.initials: K
authors.lastname: Nakagawa
authors.forename: Akiteru
authors.initials: A
authors.lastname: Hayashi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Terada
mesh_terms: D001012:Aorta, Abdominal / Q000473:pathology; D001859:Bone Neoplasms / Q000175:diagnosis / Q000556:secondary*; D019788:Fluorodeoxyglucose F18; D005528:Foot / Q000473:pathology; D006801:Humans; D008080:Liposarcoma / Q000175:diagnosis / Q000556:secondary*; D018208:Liposarcoma, Myxoid / Q000556:secondary; D008197:Lymph Node Excision; D008279:Magnetic Resonance Imaging; D008297:Male; D008682:Metatarsal Bones / Q000473:pathology*; D008875:Middle Aged; D060787:Neoplasm Grading; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography / Q000379:methods; D011237:Predictive Value of Tests; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity; D012983:Soft Tissue Neoplasms / Q000175:diagnosis / Q000473:pathology*; D013639:Tarsal Bones / Q000473:pathology*
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18