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Local resection for small rectal cancer.

C Lartigau1, G Lebreton, A Alves

  • 1Service de chirurgie digestive, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen cedex, France.

Journal of Visceral Surgery
|September 11, 2013
PubMed
Summary
This summary is machine-generated.

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Local excision offers a less invasive option for early rectal cancers, preserving function but limiting nodal staging. Careful patient selection based on tumor characteristics is crucial for successful outcomes.

Area of Science:

  • Surgical Oncology
  • Gastroenterology
  • Pathology

Background:

  • Total mesorectal excision is standard for rectal cancer.
  • Local excision presents an alternative with reduced morbidity and preserved function.
  • Local excision has limitations in nodal staging.

Purpose of the Study:

  • To outline patient selection criteria for local excision of rectal tumors.
  • To define ideal tumor characteristics for local excision.
  • To establish guidelines for managing T1 rectal tumors based on pathological findings.

Main Methods:

  • Review of current practices and literature for rectal cancer treatment.
  • Utilizing endorectal ultrasound and magnetic resonance imaging for patient selection.
  • Pathological assessment of resected specimens to determine unfavorable criteria.
Keywords:
Local excisionPathologic criteriaRectal cancerTransanal endoscopic surgery

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Main Results:

  • Ideal tumors for local excision are ≤3 cm, superficial (usTis/usT1N0), infra-peritoneal, below the middle rectal valve, and involve <40% of circumference.
  • Transanal tumor excision is for distal lesions; transanal endoscopic microsurgery for mid/upper lesions.
  • Unfavorable criteria include deep invasion (T1sm3, T2), positive margins, vascular/lymphatic invasion, and poor differentiation.

Conclusions:

  • Simple surveillance for superficial T1sm1 tumors without unfavorable criteria.
  • Case-by-case discussion for T1sm2 tumors without unfavorable criteria.
  • Radical surgery is indicated for unfavorable pathological findings after local excision.