title: [Neoadjuvant treatment as a limiting factor to rectal ultrasonography].
abstract: BACKGROUND
  Rectal ultrasonography is a basic method for staging rectal cancer. Tissue changes after neoadjuvant treatment alter the accuracy of the method.
  
  
  OBJECTIVE
  The aim of the authors was to assess the accuracy of rectal ultrasonography after preoperative chemo-radiotherapy compared to the initial staging accuracy.
  
  
  METHODS
  Rectal ultrasounds performed between 2006 and 2014 were assessed retrospectively. Ultrasonographic and pathological T and N stages were compared both in case of initial staging (control group) and re-staging.
  
  
  RESULTS
  T staging was accurate in 70% in the control group and in 61% in re-staging. Rate of overstaging was 31% after neoadjuvant treatment. None of the ypT0 cases were identified. N staging accuracy was 64% in the control group and 61% in re-staging.
  
  
  CONCLUSIONS
  Neoadjuvant treatment impairs the accuracy of rectal ultrasound. The role of re-staging with rectal ultrasonography is debatable in the assessment of the efficacy of oncological treatment and surgical planning. Orv. Hetil., 2016, 157(30), 1193-1197.
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Anna
authors.initials: A
authors.lastname: Fábián
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Renáta
authors.initials: R
authors.lastname: Bor
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Anita
authors.initials: A
authors.lastname: Bálint
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Klaudia
authors.initials: K
authors.lastname: Farkas
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Ágnes
authors.initials: Á
authors.lastname: Milassin
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Mariann
authors.initials: M
authors.lastname: Rutka
authors.affiliation: Patológiai Intézet, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged.
authors.forename: László
authors.initials: L
authors.lastname: Tiszlavicz
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Ferenc
authors.initials: F
authors.lastname: Nagy
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Tamás
authors.initials: T
authors.lastname: Molnár
authors.affiliation: I. Belgyógyászati Klinika, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged, Korányi fasor 8-10., 6720.
authors.forename: Zoltán
authors.initials: Z
authors.lastname: Szepes
mesh_terms: D000328:Adult; D000368:Aged; D059248:Chemoradiotherapy; D019160:Endosonography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020360:Neoadjuvant Therapy / Q000009:adverse effects* / Q000379:methods*; D009367:Neoplasm Staging; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000628:therapy; D012007:Rectum; D012189:Retrospective Studies
keywords: neoadjuvant treatment; neoadjuváns kezelés; rectal cancer; rectalis ultrahang; rectumcarcinoma; staging; transrectal ultrasound