Kim YJ, Song SY, Kim W, Lee J, Ahn JH, Kim JE, Chung HW, Jeong SY, Choi EK. Undervaluation of Radiotherapy for Gross Desmoid Tumors: The Need for Absolute Volume Assessment.
In Vivo 2021;
35:1777-1784. [PMID:
33910862 DOI:
10.21873/invivo.12437]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM
To compare absolute volume (AV) assessment according to Response Evaluation Criteria in Solid Tumors (RECIST) for the response evaluation of desmoid tumors (DTs) treated with radiotherapy.
PATIENTS AND METHODS
Eighteen patients with DTs ≥3 cm in size were included.
RESULTS
The median follow-up duration was 78.0 months. Five patients achieved a complete response according to RECIST, seven reached a partial response (PR), and one eventually exhibited progression. The overall response rate was 61%, the median time to PR was 8.0 months. Six patients achieved stable disease, although three developed progressions. Of the six patients with a PR, the median change in maximum diameter was -46%, and the median change in maximum volume was -84%. Three patients could have been diagnosed with progression at least 6 months earlier if the AV increment was considered.
CONCLUSION
An AV assessment is essential for an accurate response assessment of DTs and radiotherapy seems feasible as a first-line treatment for DTs.
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