title: [Inverted naso-sinusal papilloma: analytic study on 13 cases].
abstract: OBJECTIVE
  Inverted nasosinusal papilloma is a rare tumorous process involving mucosa of nasal fossa and paranasal sinus unilaterally. The authors studied inverted naso-sinusal papilloma observed and treated in ENT and Head and Neck department at Brazzaville University Hospital.
  
  
  METHODS
  Retrospective study concerning 13 patients treated between 1988 and 2001.
  
  
  RESULTS
  The average age is 34 years (range: 16 to 60 years); old nasal obstruction is the main symptom (12 cases); the diagnosis is histologic; association with Killian polyp (1 case), human papilloma virus infection (1 case) and rhinosporidiosis (1 case); large surgical removal (Caldwell-Luc, para-latero-nasal) and polypectomy associated to diathermy of tumorous insertion place permitted to have satisfactory results; the recurrencies were observed in four cases from 7 months to 10 years (average: 4 years); malignant transformation is noted in 2 cases with one case of inverted papilloma combined to Human Papilloma Virus infection.
  
  
  CONCLUSIONS
  All naso-sinusal polypoid should have a histological study. Patients must be followed-up regularly; this is very difficult in Africa.
authors.affiliation: CHU de Brazzaville, Service d'ORL et de Chirurgie Cervico-Faciale, BP. 32, 13356. Brazzaville, Congo. ondzotto@voila.fr
authors.forename: G
authors.initials: G
authors.lastname: Ondzotto
authors.forename: J B
authors.initials: JB
authors.lastname: Nkoua-Mbon
authors.forename: J F
authors.initials: JF
authors.lastname: Peko
authors.forename: J
authors.initials: J
authors.lastname: Galiba
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018308:Papilloma, Inverted / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*; D012189:Retrospective Studies