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Ultrasonographic monitoring of the effects of preoperative chemotherapy in osteosarcoma and Ewing's sarcoma

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Summary

This study evaluates ultrasonography as a method of monitoring the effect of preoperative chemotherapy on two types of tumour. Changes in the size of tumours of 15 patients (13 osteosarcoma, 2 extraosseous Ewing's sarcoma) were monitored by this method, and the results compared with the histological examination of the resected specimens. Six patients in whom the tumour size increased towards the end of chemotherapy showed in inadequate histological response, whereas 6 of the 7 patients in whom the tumour decreased in size had a good histological response. Ultrasonography is of value as it can indicate the effect of preoperative chemotherapy on sarcoma by monitoring the size of the tumour, and it is simple and cheap to use.

Résumé

Les auteurs étudient par ultrasonographie les effets de la chimiothérapie pré-opératoire dans les ostéosarcomes et les sarcomes d'Ewing. Les variations de la taille des tumeurs de 15 patients (13 ostéosarcomes et 2 sarcomes d'Ewing) ont été examinées par échographie et les résultats ont été comparés aux résultats histopathologiques constatés après résection tumorale. Dans 6 cas où le volume de la tumeur a progressé durant cette chimiothérapie préopératoire, l'histopathologie a montré une mauvaise réponse tumorale (niveau I 3 cas, niveau II 3 cas). Dans 6 des 7 cas où le volume tumoral a diminué, on note une réponse tumorale favorable à la chimiothérapie (niveau III 5 cas, niveau IV 1 cas). L'échographie est donc une bonne méthode de contrôle de l'action de la chimiothérapie pré-opératoire sur les sarcomes notamment à cause de sa facilité d'utilisation et de son coût modique.

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Kinoshita, T., Tatezaki, S., Matsuzoki, O. et al. Ultrasonographic monitoring of the effects of preoperative chemotherapy in osteosarcoma and Ewing's sarcoma. International Orthopaedics 19, 312–314 (1995). https://doi.org/10.1007/BF00181117

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  • DOI: https://doi.org/10.1007/BF00181117

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