title: [Experience in the surgical treatment of paranasal sinus mucoceles in a university hospital].
abstract: BACKGROUND
  Mucoceles are benign cystic lesions of the paranasal sinuses. Endoscopic marsupialisation is considered the first choice of treatment, due to its low morbidity and recurrence rates.
  
  
  OBJECTIVE
  To establish the number of patients with recurrence, who were diagnosed clinically or by computed tomography, and who were submitted to surgery in the Ear, Nose and Throat Unit in a tertiary university hospital.
  
  
  METHODS
  A clinical, cross-sectional, descriptive, observational and retrospective study was conducted on patients with a mucocele diagnosis operated on in the period from January 2006 to December 2013. A descriptive statistical analysis was performed to obtain the frequencies, ratios and proportions. Measures of central tendency and dispersion were obtained. The recurrence rates of each surgical technique were compared using the Chi-squared test.
  
  
  RESULTS
  Of the 59 patients included in the study, 39 were female and 20 were men. The most common location was in the maxillary sinus (22 patients) followed by frontoethmoidal (20 patients). There was a recurrence of 9% in those submitted to a surgical procedure. The endoscopic approach was used in 51 patients, 8 cases were combined (open plus endoscopic), and there was no open approach. There was a recurrence in 7 of 51 of patients with endoscopic surgery, and one out of 8 patients had a recurrence with a combined technique.
  
  
  CONCLUSIONS
  No statistically significant relationship was found between the type of surgery and recurrence, or between the presence or absence of a predisposing factor and recurrence.
authors.affiliation: Clínica para los Trastornos del Gusto y Olfato, Centro Neurológico ABC, Centro médico ABC, Ciudad de México, México. Electronic address: gustoyolfato@gmail.com.
authors.forename: Salomón
authors.initials: S
authors.lastname: Waizel-Haiat
authors.affiliation: Servicio de Otorrinolaringología, Unidad Médica de Alta Especialidad, Hospital de Especialidades Dr. Bernardo Sepúlveda Gutiérrez, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México.
authors.forename: Ivette Margarita
authors.initials: IM
authors.lastname: Díaz-Lara
authors.affiliation: Servicio de Otorrinolaringología, Unidad Médica de Alta Especialidad, Hospital de Especialidades Dr. Bernardo Sepúlveda Gutiérrez, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México.
authors.forename: Alejandro Martin
authors.initials: AM
authors.lastname: Vargas-Aguayo
authors.affiliation: Servicio de Medicina Interna, Unidad Médica de Alta Especialidad Dr. Victorio de la Fuente Narváez, Instituto Mexicano del Seguro Social, Ciudad de México, México.
authors.forename: Jorge Luis
authors.initials: JL
authors.lastname: Santiago-Cordova
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006785:Hospitals, University / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000601:surgery*; D010254:Paranasal Sinus Diseases / Q000601:surgery*; D012008:Recurrence; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome
keywords: Mucoceles; Paranasal sinus; Senos paranasales; Surgical treatment; Tratamiento quirúrgico