title: [Sonographical features of the epididymis tuberculosis with caseous necrosis].
abstract: OBJECTIVE
  To analyse sonographical features of epididymis tuberculosis with caseous necrosis and improve the accuracy of ultrasonic diagnosis.
  
  
  METHODS
  Ultrasonic features of 12 cases with epididymis tuberculosis with caseous necrosis, confirmed by surgical pathology, was retrospectively analysed: size, location, echogenicity, degree of blood flow in the lesion.
  
  
  RESULTS
  In all 12 patients, the number of purified protein derivative test (PPD) presenting the positive reached to 67%, while cases with the pulmonary tuberculosis was 42%. The epididymal tuberculosis with caseous necrosis could present images of the whole or focal epididymal enlargement and abnormal shape. The lesions internal echoes were irregular, inhomogeneous increased isoechoic echogenicity or hypoechoic, including bad-defined, irregular, homogeneous hypoechoic or anechoic. In lesional location, 4 out of 12 patients (33%) possessed richly color blood flow in Color Doppler Power Imaging(CDPI). The testicular enlargement with increased internal echoes and the testicular hydroceles were partly (58%, 7/12) observed by ultrasound. There was no varicocele, scrotal wall thickening and inguinal lymph node enlargement.
  
  
  CONCLUSIONS
  The High Frequency Color Doppler images is helpful for the diagnosis and differential diagnosis of epididymis tuberculosis with caseous necrosis.
authors.affiliation: Department of Ultrasound of Imaging Center, the Second Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830028, China. xjlch64@126.com
authors.forename: Chun-hong
authors.initials: CH
authors.lastname: Liu
authors.forename: Qiu-hua
authors.initials: QH
authors.lastname: Jing
authors.forename: Bin
authors.initials: B
authors.lastname: Ma
authors.forename: Ai-hong
authors.initials: AH
authors.lastname: Zhang
authors.forename: Yi-nu-er
authors.initials: YN
authors.lastname: Ma
authors.forename: Gui-jiao
authors.initials: GJ
authors.lastname: Peng
authors.forename: Jun-wei
authors.initials: JW
authors.lastname: Wang
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004823:Epididymitis / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D012189:Retrospective Studies; D014389:Tuberculosis, Male Genital / Q000000981:diagnostic imaging* / Q000473:pathology; D018615:Ultrasonography, Doppler, Color