[Imaging follow-up of soft tissue sarcomas]

We have studied the post-treatment follow-up of patients with history of limb soft tissue sarcoma including MR imaging to determine its added value compared to simple clinical follow-up and the impact of MR imaging findings on patient management. We have also studied the value of chest CT to detect metastases.

Retrospective study of 85 patients treated for limb soft tissue sarcoma with post-treatment MR imaging of the affected region. We have studied the percentage of local recurrences and the modality of detection of these recurrences. We have evaluated the impact on management of patients with abnormalities detected on MRI. For distant metastases, we have recorded their percentage and date of occurrence.

There were five cases of local recurrence, for a percentage of 6%, with 50% detected clinically. The percentage of metastases was 26%. Six biopsies were performed and complementary examinations were performed in 18 cases based on abnormalities detected on MR.

These results are in keeping with recommendations from the Fédération nationale des centres de lutte contre le cancer. Imaging is necessary to detect lung metastases.