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Inflammatory Malignant Fibrous Histiocytoma of Thymus Origin

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1 Inflammatory Malignant Fibrous Histiocytoma of Thymus Origin
Joji Samejima, MD, Ko Takahashi, MD, Takahiro Omori, MD, Koji Okudela, MD, PhD, Michihiko Tajiri, MD, PhD, Munetaka Masuda, MD, PhD  The Annals of Thoracic Surgery  Volume 89, Issue 6, Pages (June 2010) DOI: /j.athoracsur Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

2 Fig 1 Chest computed tomographic scan showing an anterior mediastinal tumor, measuring 38 × 35 × 50 mm, with a well-defined margin. No pleural effusion or lymphadenopathy was detected. The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

3 Fig 2 (A) The tumor was composed of pleomorphic, spindle-shaped cells arranged in a storiform pattern, with pleomorphic giant cells and atypical mitotic figures. Marked infiltration by a variety of inflammatory cells was observed. (Hematoxylin and eosin stain; ×20.) (B) Immunohistochemical staining was positive for a1-antitrypsin (×20). The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions


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