Inflammatory Myofibroblastic Tumor of the Lung and the Maxillary Region: A Benign Lesion with Aggressive Behavior
Figure 3
Histological and immunohistochemical examination of the maxillary mass. (a) Hematoxylin-eosin staining demonstrating spindle cells sprinkled with inflammatory cells, with a predominance of plasma cells and lymphocytes (original magnification ). (b) immunohistochemical staining showing strong reactivity for vimentin (original magnification ). (c) Immunohistochemical staining showing moderate reactivity for α-smooth muscle actin (original magnification ). (d) Immunohistochemical staining showing focal and weak immunoreactivity of the tumor cells for Ki-67 (original magnification ).
