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Preoperative 3D Reconstruction Model in Slow Mohs Surgery for Dermatofibrosarcoma Protuberans
Jia Huang1, Xiaobo Zhou1, Songtao Ai2
1Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai, China.
Computational Intelligence and Neuroscience
|April 18, 2022
Summary
Three-dimensional (3D) modeling combined with slow Mohs surgery precisely resects dermatofibrosarcoma protuberans (DFSP), a rare skin cancer, potentially reducing recurrence rates.
Area of Science:
- Oncology
- Dermatology
- Surgical Innovation
Background:
- Dermatofibrosarcoma protuberans (DFSP) is a rare skin cancer known for its high recurrence rate.
- Standard treatments like wide-local excision (WLE) and Mohs micrographic surgery (MMS) have unknown recurrence rate differences.
- DFSP presents a clinical challenge, necessitating advanced treatment technologies.
Purpose of the Study:
- To evaluate the efficacy of 3D modeling in defining tumor characteristics for DFSP excision.
- To assess the role of 3D modeling in assisting slow Mohs surgery for DFSP.
- To determine if this combined approach can reduce DFSP recurrence.
Main Methods:
- 18 primary DFSP cases without metastasis were analyzed.
- 3D tumor reconstruction models were created using CT and MRI imaging.
- Patients underwent slow Mohs surgery guided by 3D models, followed by defect repair.
Main Results:
- 3D tumor reconstruction models were successfully established for all cases.
- Accurate tumor localization was achieved, with an average predicted volume of 38.5 cm³.
- Complete tumor removal in one stage of slow MMS surgery was achieved, with successful defect repair and minimal complications.
Conclusions:
- The combination of 3D reconstruction models and slow Mohs surgery enables precise and complete resection of DFSP.
- This approach shows promise in decreasing the recurrence rate of dermatofibrosarcoma protuberans.
- 3D modeling offers a valuable technological advancement for treating challenging DFSP cases.

