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Li D, Yang F, Zhao Y, Wang Q, Ren W, Sun L, Shan D, Qin C. High-Frequency Ultrasound Imaging to Distinguish High-Risk and Low-Risk Dermatofibromas. Diagnostics (Basel) 2023; 13:3305. [PMID: 37958200 PMCID: PMC10650765 DOI: 10.3390/diagnostics13213305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/19/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Dermatofibroma has various pathological classifications, some of which pose a risk of recurrence and metastasis. Distinguishing these high-risk dermatofibromas based on appearance alone can be challenging. Therefore, high-frequency ultrasound may provide additional internal information on these lesions, helping to identify high-risk and low-risk dermatofibroma early. METHODS In this retrospective study, 50 lesions were analyzed to explore the correlation between clinical and high-frequency ultrasound features and dermatofibroma risk level. Based on their pathological features, the lesions were divided into high-risk (n = 17) and low-risk (n = 33) groups. Subsequently, an identification model based on significant high-frequency ultrasound features was developed. RESULTS Significant differences were observed in the thickness, shape, internal echogenicity, stratum basal, and Doppler vascular patterns between the high-risk and low-risk groups. The median lesion thickness for the high-risk dermatofibroma group was 4.1 mm (IQR: 3.2-6.1 mm), while it was 3.1 mm (IQR: 1.3-4.2 mm) for the low-risk dermatofibroma group. In the high-risk dermatofibroma group, irregular morphology was predominant (70.6%, 12/17), the most common being dermis-to-subcutaneous soft tissue penetration (64.7%, 11/17), and heterogenous internal echogenicity was observed in the majority of cases (76.5%, 13/17). On the other hand, regular morphology was more prevalent in the low-risk dermatofibroma group (78.8%, 26/33), primarily limited to the dermis layer (78.8%, 26/33), with homogeneous internal echogenicity also being prevalent in the majority of cases (81.8%, 27/33). Regarding the Doppler vascularity pattern, 69.7% (23/33) of low-risk dermatofibromas had no blood flow, while 64.7% (11/17) of high-risk dermatofibromas had blood flow. CONCLUSION High-frequency ultrasound is crucial in distinguishing high-risk and low-risk dermatofibromas, making it invaluable for clinical management.
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Affiliation(s)
- Danhua Li
- Department of Medical Ultrasound, Jinshan Hospital, Fudan University, Shanghai 201508, China; (D.L.); (Y.Z.)
| | - Feiyue Yang
- Department of Medical Ultrasound, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China; (F.Y.); (Q.W.); (W.R.); (L.S.)
- Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Shanghai 200072, China
| | - Yang Zhao
- Department of Medical Ultrasound, Jinshan Hospital, Fudan University, Shanghai 201508, China; (D.L.); (Y.Z.)
| | - Qiao Wang
- Department of Medical Ultrasound, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China; (F.Y.); (Q.W.); (W.R.); (L.S.)
- Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Shanghai 200072, China
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200443, China
| | - Weiwei Ren
- Department of Medical Ultrasound, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China; (F.Y.); (Q.W.); (W.R.); (L.S.)
- Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Shanghai 200072, China
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200443, China
| | - Liping Sun
- Department of Medical Ultrasound, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China; (F.Y.); (Q.W.); (W.R.); (L.S.)
- Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Shanghai 200072, China
| | - Dandan Shan
- Department of Medical Ultrasound, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China; (F.Y.); (Q.W.); (W.R.); (L.S.)
- Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Shanghai 200072, China
| | - Chuan Qin
- Department of Medical Ultrasound, Jinshan Hospital, Fudan University, Shanghai 201508, China; (D.L.); (Y.Z.)
- Department of Ultrasound, Karamay Central Hospital, Karamay 834000, China
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Yu Q, Zhu Y, Huang R, Li Y, Song L, Zhang X, Tang M, Gu Q, Li P, Zhou N, Li Y. Diagnosis and differential diagnosis of dermatofibrosarcoma protuberans: Utility of high-resolution dynamic contrast-enhanced (DCE) MRI. Skin Res Technol 2022; 28:651-663. [PMID: 35639715 PMCID: PMC9907642 DOI: 10.1111/srt.13164] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 05/03/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Dermatofibrosarcoma protuberans (DFSP) is a kind of low-grade malignant spindle cell neoplasm, the diagnosis, and treatment, which have markedly attracted clinicians' attention for its repeated recurrence. High-resolution magnetic resonance imaging (HR-MRI) has shown unique capabilities in diagnosis of various cutaneous tumors. MATERIALS AND METHODS Data of 29 patients with clinically suspected DFSPs and undergoing dynamic contrast-enhanced (DCE) HR-MRI preoperatively were prospectively collected. The HR-MRI qualitative features were evaluated and compared. The DCE-associated quantitative parameters and the time-signal intensity curve (TIC) types were provided using DCE sequences. RESULTS A total of 7 DFSPs, nine dermatofibromas (DF, including four cases of cellular variant [CDF]), 12 keloids, and one nodular fasciitis were enrolled. DFSP showed the largest major diameter and the deepest depth. Five DFSPs (71.4%) showed ill-defined margins as well as infiltration of peripheral adipose. All DFSPs showed irregular shape. Most DFSPs presented hyperintensity on T2 WI (71.4%) and iso-intensity on T1 WI (85.7%). Six cases (85.7%) had significant enhancement, and six cases (85.7%) had homogeneous enhancement. There were significant differences of Ktrans , Kep , Ve and iAUC values among DFSPs, DFs, and keloids, and DFSP had the highest values for these parameters. Six DFSPs (85.7%) and four CDFs (100%) showed type-III TICs, while the other lesions showed type-Ⅰor type-Ⅱ TICs. CONCLUSIONS DCE-HR-MRI could show the growth characteristics of DFSPs, which was of great value for the diagnosis and differential diagnosis of DFSPs and was helpful for the determination of treatment options, thereby to improve the prognosis of patients.
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Affiliation(s)
- Qiuyu Yu
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yueqian Zhu
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Renjun Huang
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yan Li
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Linyi Song
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaoping Zhang
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Mengxiao Tang
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qinghua Gu
- Department of Radiology, Suzhou Yongding Hospital, Suzhou, China
| | - Ping Li
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Naihui Zhou
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yonggang Li
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China
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