title: Detection of recurrent and primary acquired cholesteatoma with echo-planar diffusion-weighted magnetic resonance imaging.
abstract: OBJECTIVE
  To evaluate the diagnostic value of echo-planar diffusion-weighted magnetic resonance imaging in pre-operative detection of suspected primary acquired, residual and/or recurrent cholesteatoma.
  
  
  METHODS
  Fifty-eight chronic otitis media patients with suspected cholesteatoma were thus evaluated two weeks pre-operatively, and divided into group one (41 patients, no previous surgery, suspected primary acquired cholesteatoma) and group two (17 patients, previous surgery, scheduled 'second-look' or revision surgery for suspected residual or recurrent cholesteatoma). Patients' operative, histopathology and radiological findings were compared.
  
  
  RESULTS
  Cholesteatoma was found in 63 per cent of group one patients and 58 per cent of group two patients at surgery. Histopathological examination of surgical specimens indicated that imaging accurately predicted the presence or absence of cholesteatoma in 90 per cent of group one (37/41; 23 true positives, 14 true negatives) and 76 per cent of group two (13/17; seven true positives, six true negatives). Three patients in both groups were false negative diagnoses and one patient in both groups was a false positive. The sensitivity, specificity, and positive and negative predictive values of echo-planar diffusion-weighted magnetic resonance imaging of cholesteatoma were respectively 88, 93, 95 and 82 per cent in group one and 70, 85, 87 and 66 per cent in group two.
  
  
  CONCLUSIONS
  Echo-planar diffusion-weighted magnetic resonance imaging is a valuable technique with high sensitivity and specificity for cholesteatoma imaging.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine, Çukurova University, Adana, Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Evlice
authors.forename: Ö
authors.initials: Ö
authors.lastname: Tarkan
authors.forename: M
authors.initials: M
authors.lastname: Kiroğlu
authors.forename: K
authors.initials: K
authors.lastname: Biçakci
authors.forename: S
authors.initials: S
authors.lastname: Özdemir
authors.forename: Ü
authors.initials: Ü
authors.lastname: Tuncer
authors.forename: E
authors.initials: E
authors.lastname: Çekiç
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D018424:Cholesteatoma, Middle Ear / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D002908:Chronic Disease; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D017352:Echo-Planar Imaging; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010033:Otitis Media / Q000150:complications; D011300:Preoperative Care / Q000379:methods*; D012008:Recurrence; D024162:Second-Look Surgery; D012680:Sensitivity and Specificity; D055815:Young Adult