title: Some considerations on middle ear cholesteatoma in 'foreign workers'.
abstract: The treatment of cholesteatoma in patients without a permanent residence or in medically underdeveloped countries presents a serious problem in middle ear surgery. Methods which erradicate disease safely and reduce the risk of recurrence to a minimum are necessary. We differentiate 3 clinical types of cholesteatoma: 1 Retraction of Shrapnell's membrane or in the postero-superior quadrant with very little cholesteatoma lateral to the ossicles. A transcanal technique is used to evert the cholesteatomatous pocket into the meatus intact, followed by reconstruction of the outer attic wall. 2 Circumscribed cholestatoma lateral and often also medial to the ossicles. Combined approach tympanoplasty is used in such cases. 3 Marginal perforations with large cholesteatomas, situated medial to the ossicular chain. For these ears, classical radical mastoidectomy is the method of choice. (Radical mastoidectomy also has to be performed in all cases of type II, where luxation of the matrix in toto has failed.)
  
  
  RESULTS
  No recurrence has been detected in cases where follow-up was possible.
mesh_terms: D002781:Cholesteatoma / Q000145:classification / Q000473:pathology / Q000601:surgery*; D004427:Ear Diseases / Q000145:classification / Q000473:pathology / Q000601:surgery; D004429:Ear Ossicles / Q000473:pathology; D004432:Ear, Middle / Q000601:surgery*; D006801:Humans; D008416:Mastoid / Q000473:pathology; D012008:Recurrence; D013557:Switzerland; D014171:Transients and Migrants