2010, Vol. 21 Issue (5): 331-335    DOI:
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The imaging and pathology of inflammatory myofibroblastic tumor
LV Shao-mao1, DUAN Shao-yin1, HAN Dan2, WANG Jin-an1, YE Feng1, LIANG Kun-ru1
1.Department of Radiology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen Fujian 361004, China; 2.Room of CT, the First Affiliated Hospital of Kunming Medical College, Kunming 650032, China
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Abstract  Objective: To investigate the imaging and pathology of inflammatory myofibroblastoma(IMT). Methods: Thirteen patients of IMT proved by pathology, in which 10 patients with contrast medium enhancement, and the imaging were analyzed retrospectively. Results: The anatomic locations included mastoid antrum(n=1), lung(n=2), mediastinum(n=2), pharynx(n=1), sinus(n=1), gastric antrum(n=1), esophagus(n=1), liver(n=1), retroperitoneum(n=1), bladder(n=2). Imaging findings were solid masses in eight cases, cystic and solid mass in 5 cases. The majority of cases have a clear boundary. After contrast administration, moderate or marked homogeneous or heterogeneous enhancement, was found. IMT occurred in the head and neck, retroperitoneal space, and 1 case of mediastinum tumor had invasive imaging features. The tumors were mainly composed of spindle shaped fibrous cells and inflammatory cells on pathology, and positive staining for muscle deriving proteins was observed immunohistochemically. Conclusion: Imaging provides accurate anatomic location and helpful information for clinical diagnosis of IMT, yet the definite diagnosis relies on pathological and immunohistochemical study.
Key wordsNeoplasms      muscle tissue      Tomography      spiral computed      Magnetic resonance imaging     
Received: 09 September 2009     
:  R738.7  
  R730.262  
  R814.42  
  R445.2  
Corresponding Authors: DUAN Shao-yin   
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LV Shao-mao
DUAN Shao-yin
HAN Dan
WANG Jin-an
YE Feng
LIANG Kun-ru
Cite this article:   
LV Shao-mao,DUAN Shao-yin,HAN Dan, et al. The imaging and pathology of inflammatory myofibroblastic tumor[J]. , 2010, 21(5): 331-335.
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