Accuracy of endosonography in the staging of rectal cancer treated by radiotherapy.
作者： B. Napoleon , B. Pujol , F. Berger , P. J. Valette , J. P. Gerard
关键词:
摘要: Endosonography is the best available method for pretherapeutic staging of rectal cancer. The present prospective study was to determine influence previous radiotherapy, widely used in management this tumour, on accuracy endosonography. A complete endosonographic examination performed just before surgery 40 patients with Endosonographic and pathological were compared group A, 21 without B, 19 preoperative radiotherapy. While lymph node involvement similar two groups (85 per cent 84 cent), wall invasion correctly ascertained 86 but only 47 B (P < 0·05). After irradiation, thickening poor visualization hyperechoic layers hampered interpretation. Post-radiotherapy inflammation and/or fibrosis probably explained echographic changes. Radiotherapy therefore altered New interpretation criteria are needed evaluation follow-up cancer treated by
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