Appearance of recurrent dermatofibrosarcoma protuberans in postoperative MRI follow-up

被引:19
作者
Sedaghat, Sam [1 ,2 ]
Schmitz, Frederick [2 ]
Sedaghat, Maya [1 ,2 ]
Nicolas, Volkmar [2 ]
机构
[1] Univ Hosp Schleswig Holstein, Dept Radiol & Neuroradiol, Campus Kiel,Arnold Heller Str 3, D-24105 Kiel, Germany
[2] Univ Hosp Bergmannsheil, Inst Diagnost & Intervent Radiol & Nucl Med, Burkle Camp Pl 1, D-44789 Bochum, Germany
关键词
Dermatofibrosarcoma protuberans; DFSP; MRI; Post treatment changes; sarcoma; Follow up; SOFT-TISSUE TUMORS; DIAGNOSIS; FEATURES; SURGERY; HEAD;
D O I
10.1016/j.bjps.2020.08.089
中图分类号
R61 [外科手术学];
学科分类号
摘要
Purpose: To analyze the appearance of recurrent dermatofibrosarcoma protuberans (DFSP) in postoperative MRI follow-up and to assess the occurrence of postoperative soft tissue changes detected in MRI. Methods: A total of 464 MRI follow-up scans of 32 patients with histologically proven diagnosis of DFSP were analyzed. MR imaging was performed using a 1.5T MRI system. Recurrent DFSP was examined for signal intensity, contrast behavior, appearance, and extent in MRI. Results: The mean age of the patients was 44,5 +/- 17,1 years. Recurrences of DFSP occurred 26 +/- 23.3 months after primary tumor resection in the mean (Min.: 9, Max.: 60). In 25% of the patients (n = 8), recurrences of DFSP were detected. Recurrent DFSP most often showed a nodular and homogeneous configuration with well-defined borders and marked contrast enhancement, and a hyperintense signal in PD-weighted and turbo inversion recovery magnitude sequences. All recurrences were well detected in the follow-up MRIs regardless of the performed plastic surgery procedure. Lateral and depth margins had no significant impact on the local recurrence rate. In all, 88% of the patients developed subcutaneous tissue edema ( p < 0.01), followed by muscle edema (34%, p = 0.02), and postoperative seroma (22%). Conclusion: Recurrent DFSP mainly appear uniform and clearly delimitable on MRI as nodular, homogeneous, and well-defined lesions with marked contrast enhancement. Therefore, MRI is a valuable tool for postsurgical follow-up. Nearly all patients develop subcutaneous edema after the resection of DFSP. (C) 2020 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:1960 / 1965
页数:6
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