title: Differentiation of femoral and inguinal hernias on the basis of anteroposterior relationship to the inguinal ligament on multidimensional computed tomography.
abstract: OBJECTIVE
  The purpose of this study was to evaluate whether multidimensional computed tomography (MDCT) can be used to differentiate between types of groin hernias, specifically femoral and inguinal hernias, based on their anteroposterior relationship to the inguinal ligament.
  
  
  METHODS
  We retrospectively analyzed 75 groin hernias of 71 patients, including 28 femoral and 47 inguinal hernias. We diagnosed hernias prolapsing anterior to the inguinal ligament as inguinal hernias and those passing posterior to the ligament as femoral hernias.
  
  
  RESULTS
  In 74 of 75 cases, femoral and inguinal hernias were correctly differentiated from each other based on MDCT. In one case of a "sign of aggregation" of an inguinal hernia, the anteroposterior relationship to the inguinal ligament could not be evaluated because the hernia existed superior to the ligament.
  
  
  CONCLUSIONS
  Femoral and inguinal hernias that extend caudal to the inguinal ligament can be differentiated based on their anteroposterior relationship to the inguinal ligament using MDCT.
authors.affiliation: Department of Diagnostic Radiology, Japanese Red Cross Ishinomaki Hospital, Ishinomaki City, Japan. mshkitami@rad.med.tohoku.ac.jp
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kitami
authors.forename: Kei
authors.initials: K
authors.lastname: Takase
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tsuboi
authors.forename: Yuya
authors.initials: Y
authors.lastname: Rikimaru
authors.forename: Takashi
authors.initials: T
authors.lastname: Hakamatsuka
authors.forename: Takayuki
authors.initials: T
authors.lastname: Yamada
authors.forename: Shoki
authors.initials: S
authors.lastname: Takahashi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005260:Female; D006550:Hernia, Femoral / Q000000981:diagnostic imaging*; D006552:Hernia, Inguinal / Q000000981:diagnostic imaging*; D006801:Humans; D008022:Ligaments / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011856:Radiographic Image Enhancement; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed