title: Caesarean scar pregnancy: a 10-year experience.
abstract: OBJECTIVE
  To review the management and outcome of all women with caesarean scar pregnancy (CSP) at a single centre.
  
  
  METHODS
  A retrospective review of women diagnosed with CSP between January 2004 and December 2013 was performed. Women were identified from the admission and Early Pregnancy Assessment Clinic records.
  
  
  RESULTS
  Twenty-two cases of CSP were identified during the study period. The median gestational age at diagnosis was 6.7 weeks (range 4.7-11.8 weeks). All diagnoses were made by ultrasound, the most common finding of which was a heterogeneous mass at the site of the caesarean scar (100%). The median duration for human chorionic gonadotropin to return to undetectable level was 10 weeks (range 2-20 weeks), although the duration for sonographic resolution of the CSP can take much longer. The success rate of intralesional methotrexate was 80% in our series.
  
  
  CONCLUSIONS
  There is no consensus regarding the method of choice for managing CSP. Medical management using intralesional methotrexate appears to be an acceptable treatment in clinically stable women.
authors.affiliation: Department of Obstetrics and Gynecology, Queen Mary Hospital, University of Hong Kong, Hong Kong SAR, China.
authors.forename: Jennifer K Y
authors.initials: JK
authors.lastname: Ko
authors.forename: Raymond H W
authors.initials: RH
authors.lastname: Li
authors.forename: Vincent Y T
authors.initials: VY
authors.lastname: Cheung
mesh_terms: D000020:Abortifacient Agents, Nonsteroidal / Q000008:administration & dosage; D000328:Adult; D002585:Cesarean Section / Q000009:adverse effects*; D006063:Chorionic Gonadotropin / Q000097:blood; D002921:Cicatrix / Q000150:complications*; D005260:Female; D005865:Gestational Age; D006801:Humans; D015552:Injections, Intralesional; D008727:Methotrexate / Q000008:administration & dosage; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy*; D012189:Retrospective Studies; D014463:Ultrasonography
chemical_list: D000020:Abortifacient Agents, Nonsteroidal; D006063:Chorionic Gonadotropin; D008727:Methotrexate
keywords: caesarean scar; ectopic pregnancy