title: Adenoid cystic carcinoma and mucoepidermoid carcinoma of the maxillary sinus: report of a 44-year experience of 25 cases from a single institution.
abstract: OBJECTIVE
  The aim of this study was to analyze the clinicopathologic characteristics of all cases of adenoid cystic carcinoma (ACC) and mucoepidermoid carcinoma (MEC) arising in the maxillary sinuses treated in a single institution.
  
  
  METHODS
  From 1953 to 1997, 18 ACCs and 7 MECs from the maxillary sinus were studied. Clinical data were obtained from the medical records and microscopic slides were reviewed.
  
  
  RESULTS
  Mean age was 45.9 years (range, 13 to 77 years) and TNM staging revealed 88.9% of ACCs at advanced clinical stages, while 57.1% of the MECs were initial clinical stages. Surgery combined with radiotherapy was the most common treatment. Follow-up showed 88.8% of ACC patients died from the tumor, while 42.8% of patients with MEC are alive without disease.
  
  
  CONCLUSIONS
  Maxillary sinus ACC and MEC are uncommon tumors and a patient's prognosis depends on the clinical stage and histologic type; MEC has shown a better outcome.
authors.affiliation: Oral Pathology and Semiology, School of Dentistry of Piracicaba, State University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil. perezdec2003@yahoo.com
authors.forename: Danyel Elias
authors.initials: DE
authors.lastname: da Cruz Perez
authors.forename: Fábio Ramôa
authors.initials: FR
authors.lastname: Pires
authors.forename: Márcio Ajudarte
authors.initials: MA
authors.lastname: Lopes
authors.forename: Oslei Paes
authors.initials: OP
authors.lastname: de Almeida
authors.forename: Luiz Paulo
authors.initials: LP
authors.lastname: Kowalski
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003528:Carcinoma, Adenoid Cystic / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D018277:Carcinoma, Mucoepidermoid / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D008297:Male; D008444:Maxillary Sinus Neoplasms / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009362:Neoplasm Metastasis; D009367:Neoplasm Staging; D012189:Retrospective Studies