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The diagnosis of lastonfibroma on dorsi by multi-slice computed tomography and magnetic resonance imaging
ZHANG Da-yong  PENG Ru-chen  SHEN Xiu-zhi  ZHANG Shuang  ZHAO Shuang  ZHONG Jia-li 

DOI:10.12015/issn.1674-8034.2017.08.012.


[Abstract] Objective: This study was to investigate multi-slice spiral computed tomography (MSCT) and magnetic resonance imaging (MRI) appearances of elastofibroma dorsi (EFD).Materials and Methods: 20 cases of elastofibroma dorsi which were confirmed by pathology after surgical resection were retrospectively reviewed. All patients were examined with CT, 8 of them underwent CT enhancement examination, 4 of 20 patients were examined with MRI, and 1 patient underwent MRI enhancement examination, and other 3 without enhancement. The CT values of EFD, anterior serratus muscle and surrounding fat were measured by CT and compared with that of the other groups respectively. Clinical manifestations, features of CT and MRI of elatofibroma dorsi were analyzed.Results: It was bilateral in 13 patients of 20 patients, right lateral in 4 patients and 3 patients occurred in left lateral. 33 lesions were found by MSCT, all of them were located in the deep subscapular region, presented as flat hummocky and semicircular soft-tissue mass, all tumours had almost equal density as muscle, with some Strap-shaped fat-liked density along the longitudinal of the mass. The mass was poorly circumscribed, surrounded by ambiguous adipose space. On enhanced CT scan, 3 lesions showed slight enhancement, others didn’t show any extent of enhancement, there was statistical difference of CT values between EFD and anterior serratus muscle, while the same result of EFD and fat (P<0.05). On MRI plain scan, the tumour showed heterogeneous signals of iso-intensity of muscle and hyper-intensity of fat. As to the case with enhanced MRI scan, moderately heterogeneous enhancement was observed.Conclusion: Elastofibroma dorsi has its specific location, definite diagnosis could be made according to the features of MSCT and MRI imagings.
[Keywords] Computed tomography；Magnetic resonance imaging；Fibroma；Soft tissue

ZHANG Da-yong Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

PENG Ru-chen* Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

SHEN Xiu-zhi Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

ZHANG Shuang Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

ZHAO Shuang Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

ZHONG Jia-li Department of Radiology, Beijing Luhe Hospital, Capital Medical University, Beijing 101149, China

*Correspondence to:Peng RC, E-mail:13501271260@163.com

Conflicts of interest   None.

Received  2017-02-21
Accepted  2017-06-12
DOI: 10.12015/issn.1674-8034.2017.08.012
DOI:10.12015/issn.1674-8034.2017.08.012.

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