title: [Monostotic fibrous dysplasia of the sphenoid sinus: two cases report and literature review].
abstract: OBJECTIVE
  To study the etiopathogenesis, clinical features, diagnosis and treatments of monostotic fibrous dysplasia of the sphenoid sinus.
  
  
  METHODS
  Two cases of monostotic fibrous dysplasia of the sphenoid sinus without any symptoms was reported with relevant literature review.
  
  
  RESULTS
  No aggravation was found after 6 months-follow-up.
  
  
  CONCLUSIONS
  The cranial fibrous dysplasia has low incidence rate with non-specific symptoms and high rate of misdiagnosis. The monostotic fibrous dysplasia of the sphenoid sinus without any symptom is rarely seen clinically. Imagiological examination, for example, CT and MRI, is valuable for the diagnosis of this disease. The histopathological evidence is absolutely necessary to make definite diagnosis. The conservative treatment may be chosen for the asymptomatic cases. Nasal Endoscopic surgery can not only remove the diseased region but also make diagnosis. The long-term follow-up should be carried out in all of these patients.
authors.affiliation: Department of Otolaryngology Head and Neck Surgery, the Third Xiangya Hospital of Central South University, Changsha, 410013, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Hong
authors.initials: H
authors.lastname: Sun
authors.forename: Guangxiang
authors.initials: G
authors.lastname: He
authors.forename: Ming
authors.initials: M
authors.lastname: Jiang
mesh_terms: D000328:Adult; D005260:Female; D005358:Fibrous Dysplasia, Monostotic; D006801:Humans; D008297:Male; D013101:Sphenoid Sinus / Q000473:pathology