title: [Paraffinoma--a rare complication following endonasal surgery].
abstract: BACKGROUND
  Paraffin is a mineral oil which was discovered by Reichenbach in 1830. Injection of paraffin into tissue causes a foreign body reaction that results in the formation of a paraffinoma.
  
  
  METHODS
  We are reporting on two cases of paranasal paraffinomas, in a 30-year-old male three months after a septorhinoplasty in which paraffin nasal packing was used and in a 56-year-old female patient two months after sinus surgery.
  
  
  RESULTS
  A paraffinoma is probably caused by penetration of paraffin through a mucous membrane defect into the adjacent soft tissue. Paraffinomas are usually treated by excision. Although recurrences are frequent, a complete removal should be attempted because of the potential carcinogenicity of paraffin.
  
  
  CONCLUSIONS
  Paraffinomas must be considered in the differential diagnosis of periorbital or paranasal swellings that occur months after endonasal procedures where paraffin packing was used.
authors.affiliation: Universitäts Hals-Nasen-Ohren-Klinik, Essen. edgar.bachor@uni-essen.de
authors.forename: E
authors.initials: E
authors.lastname: Bachor
authors.forename: P
authors.initials: P
authors.lastname: Dost
authors.forename: A
authors.initials: A
authors.lastname: Unger
authors.forename: M
authors.initials: M
authors.lastname: Ruwe
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D005549:Foreign-Body Reaction / Q000139:chemically induced / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D009298:Nasal Polyps / Q000139:chemically induced / Q000150:complications / Q000175:diagnosis; D010232:Paraffin / Q000008:administration & dosage / Q000009:adverse effects*; D010256:Paranasal Sinuses / Q000601:surgery*; D011183:Postoperative Complications / Q000139:chemically induced* / Q000175:diagnosis; D012225:Rhinoplasty
chemical_list: D010232:Paraffin
vernacular_title: Paraffinome--eine seltene Komplikation nach endonasaler Chirurgie.