title: Evaluation of adult Pott's puffy tumor: our five cases and 27 literature cases.
abstract: OBJECTIVE
  Pott's puffy tumor (PPT) is defined as one or more subperiosteal abscesses of the frontal bone based on osteomyelitis. PPT is observed predominantly in the adolescent age group and rarely in adults. Some parameters affecting prognosis and an appropriate surgical approach for antecedent frontal sinusitis have not been elucidated due to the rarity of patients with adult PPT.
  
  
  METHODS
  Retrospective patient record and literature study.
  
  
  METHODS
  Five patients from our cohort and 27 patients identified in a literature search formed the study group.
  
  
  RESULTS
  The incidence rate of intracranial complications was lower than in previous reports at 29.0%. There was no correlation between the incidence rate of intracranial complications and each patient's parameters. It was indicated that the department first consulted by the patients was possibly related to the initial diagnosis and the incidence rate of intracranial complications.
  
  
  CONCLUSIONS
  Although the incidence rate of major complications is lower than in children and later than in earlier published adult cases, patients are still at high risk of serious intracranial complications. Early diagnosis and adequate treatment may contribute to reducing the incidence rate.
authors.affiliation: Department of Otolaryngology, Faculty of Medicine, Kagawa University, Kagawa, Japan. kakaka@med.kagawa-u.ac.jp
authors.forename: Kosuke
authors.initials: K
authors.lastname: Akiyama
authors.forename: Masayuki
authors.initials: M
authors.lastname: Karaki
authors.forename: Nozomu
authors.initials: N
authors.lastname: Mori
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D059369:Pott Puffy Tumor / Q000150:complications* / Q000000981:diagnostic imaging / Q000453:epidemiology*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed