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Figure 3: (a) A panoramic view of the inflammatory myofibroblastic tumor: note the cellular proliferation of spindled cells (H&E ×100). (b)-(c) Vesicular nuclei and eosinophilic cytoplasms, organized in a fascicular growth pattern ((b) H&E, ×150; (c) H&E ×200). (d) A widespread immunoreactivity for vimentin (immunoperoxidase stain for vimentin, ×200). (e) A positivity for smooth muscle actin (SMA) (immunoperoxidase stain for SMA, ×200). (f) A diffuse staining for anaplastic lymphoma kinase (ALK) (immunoperoxidase stain for ALK, ×200).