title: CT of the medial umbilical folds.
abstract: OBJECTIVE
  The goal of our study was to investigate the appearance of the medial umbilical folds on CT.
  
  
  METHODS
  We retrospectively reviewed the CT images of 30 consecutive patients with massive ascites. In addition, we inspected the inner pelvic wall in cadavers.
  
  
  RESULTS
  The medial umbilical folds were well recognized on CT in 21 of 30 patients, bilaterally in 20 and unilaterally in 1. In four patients the folds were undetectable after the ascites resolved. The CT findings were supported by those studied in cadavers, in which the folds were recognized as a peritoneal reflection in 13 of 20.
  
  
  CONCLUSIONS
  We concluded that medial umbilical folds could be commonly visualized on CT when ascites was present.
authors.affiliation: Department of Radiology, University of Tsukuba, Tsukuba University Hospital, Ibaraki-ken, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Eguchi
authors.forename: Y
authors.initials: Y
authors.lastname: Saida
authors.forename: Y
authors.initials: Y
authors.lastname: Itai
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001201:Ascites / Q000000981:diagnostic imaging; D002102:Cadaver; D003287:Contrast Media / Q000008:administration & dosage; D019074:Epigastric Arteries / Q000000981:diagnostic imaging; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000000981:diagnostic imaging; D005833:Genital Neoplasms, Female / Q000000981:diagnostic imaging; D006801:Humans; D007674:Kidney Diseases / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010388:Pelvis / Q000000981:diagnostic imaging; D010529:Peritoneal Cavity / Q000000981:diagnostic imaging; D010537:Peritoneum / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014472:Umbilicus / Q000000981:diagnostic imaging
chemical_list: D003287:Contrast Media