title: Sonographic findings of inguinal endometriosis.
abstract: OBJECTIVE
  The purpose of this series was to describe the sonographic findings of inguinal endometriosis.
  
  
  METHODS
  This was a retrospective analysis of 3 cases of inguinal endometriosis. The following gray scale and color Doppler sonographic features were analyzed: size, shape, echogenicity, and blood flow within inguinal endometriosis.
  
  
  RESULTS
  The size of inguinal endometriosis ranged from 3.1 to 4.2 cm (mean, 3.7 cm). All 3 cases were cystic lesions. Two of 3 cases were lesions with internal septa. On color Doppler sonography, 1 of the 3 cases showed a few flow signals within the lesion, whereas in 2 of the 3 lesions, no blood flow could be identified within the lesions.
  
  
  CONCLUSIONS
  Although the sonographic features of inguinal endometriosis may be variable, endometriosis should be included in the differential diagnosis when unilocular and multilocular cystic masses are seen on sonography.
authors.affiliation: Department of Radiology, Kyung Hee University East-West Neo Medical Center, Gangdong-Gu, Seoul 134-090, Korea. dmy2988@yahoo.co.kr
authors.forename: Dal Mo
authors.initials: DM
authors.lastname: Yang
authors.forename: Hyun Cheol
authors.initials: HC
authors.lastname: Kim
authors.forename: Jung Kyu
authors.initials: JK
authors.lastname: Ryu
authors.forename: Joo Won
authors.initials: JW
authors.lastname: Lim
authors.forename: Gyo Young
authors.initials: GY
authors.lastname: Kim
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007264:Inguinal Canal / Q000000981:diagnostic imaging*; D008875:Middle Aged; D012680:Sensitivity and Specificity; D018615:Ultrasonography, Doppler, Color / Q000379:methods*