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Inflammatory Myofibroblastic Tumor of Lung

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Comments:
Higher magnification showing multinucleated Touton type giant cells. The fibroblastic cells are bland with rare mitoses. These multinucleated giant cells should not lead to the mistaken diagnosis of a sarcoma. The presence of necrosis, increased mitotic activity, and vascular invasion would support the latter diagnosis.

slide 9 of 9