title: [Application of unilateral olfactory testing and clinical analysis of unilateral hyposmia].
abstract: OBJECTIVE
  To investigate whether patients presenting with self-reported olfactory disorders demonstrates significant side difference in odour recognition by measuring separately for each nostril.
  
  
  METHODS
  One hundred and four patients with chief complaint of hyposmia were evaluated by medical history, physical examination, T&T olfactory testing and medical imaging. Smell was tested using T&T olfactometry in each nostril separately.
  
  
  RESULTS
  Based on the history and results from the clinical examination, unilateral sinonasal diseases and abnormal nasal structure were excluded. In almost one eighth of all presenting patients (13.46%), a side difference was detected. Especially, six of the patients were identified with lateralized hyposmia.
  
  
  CONCLUSIONS
  Olfactory testing could be performed in each nostril separately. The above findings suggested that testing each nostril separately was necessary so as not to miss unilateral hyposmia as a special clinical manifestation of olfactory disorder.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Aerospace Center Hospital, BeiJing 100049, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Guan
authors.forename: Dao-feng
authors.initials: DF
authors.lastname: Ni
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Jian-feng
authors.initials: JF
authors.lastname: Liu
authors.forename: Ying-ying
authors.initials: YY
authors.lastname: Zhu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D000857:Olfaction Disorders / Q000175:diagnosis* / Q000503:physiopathology*; D009831:Olfactory Mucosa; D011984:Sensory Receptor Cells; D012903:Smell / Q000502:physiology*; D055815:Young Adult