Abstract
Sixty-three patients with primary rectal adenocarcinomas have been examined prior to surgery with rectal endosonography (ES). Maximum depths of tumour penetration measured endosonographically have been compared with subsequent maximum depths measured on the fixed resected specimen (n=30) and the histological slide (n=61). In both cases there was a good degree of correlation between the ultrasonic estimations of depth and the histological ones (r=0.36,p=0.05, CI=95% andr=0.46, p<0.001, CI=99% respectively). In 12 cases ultrasonic depths of tumour were also measured in the laboratory and then compared with depths from fixed (n=12) and fresh specimens (n=5) with a good correlation (r=0.75,p=0.005, CI=99% andr=0.79,p=0.036, CI=95% respectively). Rectal endosonographic estimation of rectal cancer depth of invasion is an accurate measure of tumour penetration and may help distinguish between fixation due to inflammatory tissue and tumour fixity.
Résumé
63 malades atteints d'un cancer primitif du rectum ont été examinés par échographie endo-rectale avant la chirurgie. La profondeur maximum de la pénétration tumorale mesurée par échographie a été comparée avec la profondeur maximale mesurée sur la pièce d'exérèse fixée (n=30) ou sur une diapositive histologique (n=61). Dans les deux cas il y avait une bonne corrélation entre l'estimation échographique de la profondeur et l'estimation histologique (r=0.36,p=0.05, CI=95% etr=0.46, p<0.001, CI=99% respectivement). Dans 12 cas la pénétration échographique de la tumeur a été aussi mesurée au laboratoire et comparée avec la pénétration des pièces fixées (n=12) ou fraiches (n=>5) avec une bonne corrélation (r=0.75,p=0.005, CI=99%, etr=0.79,p=0.036, CI=95% respectivement). L'estimation par échographie endorectale de la profondeur d'invasion des cancers du rectum est une mesure appropriée de la pénétration tumorale et peut permettre de distinguer entre la fixation par adhérences inflammatoires et la fixité tumorale.
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Beynon, J., McC. Mortensen, N.J., Channer, J.L. et al. Rectal endosonography accurately predicts depth of penetration in rectal cancer. Int J Colorect Dis 7, 4–7 (1992). https://doi.org/10.1007/BF01647651
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DOI: https://doi.org/10.1007/BF01647651