Fig. 2.

Inflammatory myofibroblastic tumor. A) Hematoxylin and eosin stained preparation, 200 × magnification, showing IMT with long, tapered, spindled cells arranged in loose fascicles in an edematous stroma with prominent lymphoplasmacytic infiltrate and occasional atypical mitotic figure. B) Hematoxylin and eosin stain, 600 × magnification, demonstrating ganglion-like tumor cell atypia. C), D), E) Immunohistochemistry, 200 × magnification, showing neoplastic cells to be negative for ALK-1 and desmin, but weakly positive for SMA, respectively.