title: [Analysis of the cause of missed diagnosis in transperineal prostate biopsy with 4 cases report].
abstract: OBJECTIVE
  To investigate the causes of missed diagnosis in transrectal ultrasound-guided transperineal prostate biopsy.
  
  
  METHODS
  The biopsy results of total 278 patients who received transrectal ultrasound-guided transperineal prostate biopsy from January 2012 to December 2014 in Subei People's Hospital were retrospectively analyzed, using 11 systemic divisions.
  
  
  RESULTS
  One hundred and twenty-nine patients were diagnosed with prostate cancer, and 149 patients were hyperplasia of prostate. Fifty-six patients with biopsy-negative and obvious symptoms of lower urinary tract obstruction were underwent transurethral resection of the prostate. Four of which were found to be prostate cancer.
  
  
  CONCLUSIONS
  Early-stage prostate cancer, special prostate tumor location, inadequate biopsy tissue, special patients in limited position, and dissatisfied anesthesia may increase the risk of missed diagnosis. Targeted and individualized puncture may improve the effectiveness.
authors.affiliation: Subei People' s Hospital, the Clinical Medical College of Yangzhou University, Yangzhou 225001, China.
authors.forename: Xiaokang
authors.initials: X
authors.lastname: Qi
authors.forename: Xuefei
authors.initials: X
authors.lastname: Ding
authors.forename: Guangchen
authors.initials: G
authors.lastname: Zhou
authors.forename: Xiao
authors.initials: X
authors.lastname: Gu
authors.forename: Shengming
authors.initials: S
authors.lastname: Lu
mesh_terms: D001706:Biopsy; D003951:Diagnostic Errors; D006801:Humans; D008297:Male; D017430:Prostate-Specific Antigen; D011470:Prostatic Hyperplasia; D011471:Prostatic Neoplasms; D012189:Retrospective Studies
chemical_list: D017430:Prostate-Specific Antigen