Detection and Differentiation of Local Recurrence of Soft Tissue Sarcoma against the Background of Postoperative Changes Using Echography

Introduction: Early detection of relapses of soft tissue sarcoma can reduce the risk of reoperation and improve oncological outcomes.

Material and methods: A multimodal ultrasound examination of 108 soft tissue sites of different localizations was performed, in which earlier (with an interval of 12–62 months after the previous operation) malignant tumors of different histological affiliation were removed.

Results: In 37 (34.3 %) observations against the background of postoperative changes, local relapses of neoplasms were revealed. Echographic symptoms that allow differentiating tumor growth and imitating its non-tumor changes have been determined.

Conclusions: The most reliable manifestation of the recurrence of the tumor process is a local, uneven strengthening of the vascular pattern directly behind the contour of the neoplasm in its immediate tissue environment.

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