A Rare Presentation of Inflammatory Myofibroblastic Tumor in the Nasolabial Fold

Figure 2

Histopathological examination of the mass revealed (a) 100x microscopic image showing spindle cells proliferation, forming fascicles and whorls on a background of collagen fibres, and (b) 200x microscopic image showing mixed inflammatory cells infiltration in the background including plasma cells and eosinophils. (c) Spindle cells are focally positive for anaplastic lymphoma kinase (ALK) by immunohistochemistry. (d) Spindle cells are diffusely positive for smooth muscle actin (SMA) by immunohistochemistry.

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