title: [Spontaneous fatty tissue necrosis of the omentum majus and epiploic appendices: clinical, ultrasonic and CT findings].
abstract: To describe US and CT findings of primary epiploic appendicitis and segmental infarction of the omentum.
  
  
  METHODS
  From 1986 through 1996 thirteen patients presented with these pathological findings at our institution (6 patients with greater omental infarction and 7 patients with epiploic appendicitis). US (n = 13) and CT findings (n = 7) were retrospectively reviewed.
  
  
  RESULTS
  US revealed moderately hyperechoic, ovoid lesions adherent to the peritoneum. On CT scans the masses appeared as areas of fat with slightly increased attenuation and sometimes with hyperattenuating peripheral rims. Secondary omental or appendiceal involvement caused by inflammation of adjacent organs has to be excluded.
  
  
  CONCLUSIONS
  Segmental infarction of the omentum and primary epiploic appendicitis have characteristic US and CT features that enable the correct diagnosis.
authors.affiliation: Röntgenabteilung und Nuklearmedizin, KH Barmherzige Brüder, Salzburg.
authors.forename: A
authors.initials: A
authors.lastname: Hollerweger
authors.forename: T
authors.initials: T
authors.lastname: Rettenbacher
authors.forename: P
authors.initials: P
authors.lastname: Macheiner
authors.forename: N
authors.initials: N
authors.lastname: Gritzmann
mesh_terms: D000273:Adipose Tissue; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003106:Colon / Q000098:blood supply*; D005260:Female; D006801:Humans; D007238:Infarction / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D009852:Omentum / Q000098:blood supply*; D010532:Peritoneal Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography