Complete Response of Locally Advanced (stage III) Rectal Cancer to Metabolically Supported Chemoradiotherapy with Hyperthermia


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Slocum A.

Int J Cancer Res Mol Mech, vol.2, no.1, pp.1-4, 2016 (Peer-Reviewed Journal)

  • Publication Type: Article / Case Report
  • Volume: 2 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.16966/2381-3318.120
  • Journal Name: Int J Cancer Res Mol Mech
  • Page Numbers: pp.1-4

Abstract

Abstract Background: Locally advanced rectal cancer is defined as a rectal mass that cannot be resected without a high probability of leaving residual disease at the tumor site. While the standard treatment for locally advanced rectal cancer is chemoradiotherapy followed by surgery, this study reports a locally invasive rectal adenocarcinoma patient who achieved complete pathological and clinical remission after receiving a combination of metabolically supported chemotherapy (MSCT), radiotherapy (RT) and hyperthermia (HT). Case presentation: An 81-year-old female underwent a rectosigmoidoscopy at a referring hospital following a complaint of bloody stools for a period of 20 days. The rectosigmoidoscopy revealed an ulcerated tumor beginning at the level of the anal sphincter. A pathological examination of biopsy material revealed moderately differentiated invasive adenocarcinoma and the patient received a diagnosis of stage III (T3N2M0) lowlying rectal cancer. When further follow-up revealed colonic obstruction, the patient was recommended an abdominoperineal resection (APR) and was referred after refusing surgical treatment. The patient received a metabolically supported combination of oxaliplatin, 5-florouracil (5-FU) and calcium folinate (FOLFOX6) concomitant to RT and local HT and, ultimately, never underwent surgery. 27 months since her disease-free PET-CT scan, the patient remains with no sign of disease recurrence. Conclusion: According to the findings of the present study, the non-surgical treatment and achievement of complete clinical and pathological remission of locally advanced rectal adenocarcinoma may be possible by means of a combination of MSCT, RT and HT. Keywords: Pathological complete response; Locally advanced rectal cancer; Metabolically supported chemotherapy; Hyperthermia