title: [Diagnosis and differential diagnosis of Kallmann syndrome].
abstract: OBJECTIVE
  To study diagnosis and differential diagnosis of Kallmann syndrome.
  
  
  METHODS
  The examinations including routine karyotyping, sex hormone, GnRH stimulation test and MRI were performed.
  
  
  RESULTS
  Cytogenetic analysis of his peripheral lymphocyte by G banding showed a normal male karyotype. GnRH stimulation test presented a good reaction. Plasma levels of luteinizing hormone (LH), follicle-stimulating hormone (FSH) and testosterone were very low. Absent olfactory bulb was found by magnetic resonance imaging (MRI).
  
  
  CONCLUSIONS
  Karyotype analysis, sexual hormone, GnRH stimulation test and MRI are very important the diagnosis of Kallmann syndrome.
authors.affiliation: Laboratory of Reproduction and Genetics, Nanjing General Hospital, Nanjing command, PLA, Nanjing, Jiangsu 210002, China.
authors.forename: Li-jun
authors.initials: LJ
authors.lastname: Hao
authors.forename: Ying-xia
authors.initials: YX
authors.lastname: Cui
authors.forename: Yun-hua
authors.initials: YH
authors.lastname: Wang
authors.forename: Xue-jun
authors.initials: XJ
authors.lastname: Shang
authors.forename: Yu-feng
authors.initials: YF
authors.lastname: Huang
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone / Q000032:analysis; D006801:Humans; D017436:Kallmann Syndrome / Q000175:diagnosis*; D007621:Karyotyping; D007986:Luteinizing Hormone / Q000097:blood; D008279:Magnetic Resonance Imaging; D008297:Male
chemical_list: D007987:Gonadotropin-Releasing Hormone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone