title: Low-grade myxofibrosarcoma: CT and MRI patterns in recurrent disease.
abstract: OBJECTIVE
  Low-grade myxofibrosarcoma often relentlessly recurs after surgical resection, with an unusual infiltrative growth pattern and sometimes without a discrete tumor nodule at pathologic examination. This study was undertaken to determine and show patterns of recurrent low-grade myxofibrosarcoma at CT and MRI.
  
  
  CONCLUSIONS
  Unlike in most other histologic types of low-grade soft-tissue sarcoma, recurrent low-grade myxofibrosarcoma often is infiltrative; shows a tapering, tail-like margin and superficial spreading configuration; and metastasizes to various distant sites, including lungs, pleura, bone, adrenal gland, soft tissue, and mesentery. Knowledge of these unusual characteristics is important in assessing the presence and extent of recurrent low-grade myxofibrosarcoma before surgical reexcision.
authors.affiliation: Department of Radiology, Memorial Sloan-Kettering Cancer Center, 1275 York Ave., New York, NY 10021, USA.
authors.forename: Brendan
authors.initials: B
authors.lastname: Waters
authors.forename: David M
authors.initials: DM
authors.lastname: Panicek
authors.forename: Robert A
authors.initials: RA
authors.lastname: Lefkowitz
authors.forename: Cristina R
authors.initials: CR
authors.lastname: Antonescu
authors.forename: John H
authors.initials: JH
authors.lastname: Healey
authors.forename: Edward A
authors.initials: EA
authors.lastname: Athanasian
authors.forename: Murray F
authors.initials: MF
authors.lastname: Brennan
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005354:Fibrosarcoma / Q000175:diagnosis*; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D012189:Retrospective Studies; D012983:Soft Tissue Neoplasms / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed / Q000379:methods*