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The Korean Journal of Pathology 1997;31(1): 63-67.
Inflammatory Myofibroblastic Tumor in Posterior Mediastinum.
Seung Sam Paik, Seok Hoon Jeon, Se Jin Jang, Moon Hyang Park, Jung Dal Lee
Department of Pathology, College of Medicine, Hanyang University, Seoul 133-792, Korea.
Inflammatory myofibroblastic tumor(IMT) or inflammatory pseudotumor is a rare, solid tumor that most often affects children. This tumor is characterized by a spindle cell proliferation admixed with a variety of inflammatory cells. Although it has disputed nosology, a distinctive fibroinflammatory and even pseudosarcomatous appearance have been well appreciated. Herein, we report a case of IMT in the posterior mediastinum in a 19-year-old girl with clinical findings. The immunohistochemical and ultrastructural studies on the tumor cells are reported, and their distinctive characteristics are discussed in details.
Key Words: Inflammatory myofibroblastic tumor; inflammatory pseudotomor; mediastinum