title: Muscle metastases: comparison of features in different primary tumours.
abstract: BACKGROUND
  Muscle metastases (MM) from solid tumours are rare. The aim of this study was to describe radiological features of MM, and to compare their patterns in different malignancies.
  
  
  METHODS
  A retrospective search in the statistical database of our institution revealed 61 cases of MM. Additionally, a retrospective search in Pubmed database was performed. Together with our cases the present analysis comprises 461 patients (682 MM).
  
  
  RESULTS
  MM derived from the following malignancies: lung cancer (25.1%), gastrointestinal tumours (21.0%), and urological tumours (13.2%). Other neoplasias with MM were rare. MM were localised most frequently in the thigh muscles, the extraocular musculature, and the gluteal and paravertebral muscles. The localisation of MM was different in several primary malignancies.
  
  
  CONCLUSIONS
  MM present with a broad spectrum of radiological features. Different CT imaging findings of MM were observed in different primary tumours. The localisation of MM also varies with different primary malignancies.
authors.forename: Alexey
authors.initials: A
authors.lastname: Surov
authors.forename: Johanne
authors.initials: J
authors.lastname: Köhler
authors.forename: Andreas
authors.initials: A
authors.lastname: Wienke
authors.forename: Hubert
authors.initials: H
authors.lastname: Gufler
authors.forename: Andreas Gunter
authors.initials: AG
authors.lastname: Bach
authors.forename: Dominik
authors.initials: D
authors.lastname: Schramm
authors.forename: Curd
authors.initials: C
authors.lastname: Behrmann
authors.forename: Rolf Peter
authors.initials: RP
authors.lastname: Spielmann
mesh_terms: D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D019042:Muscle Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D049268:Positron-Emission Tomography; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed