Fig. 3.53 Inflammatory myofibroblasts tumour. A Polypoid submucosal spindle cell proliferation with a myxoid and well-vascularized stroma, and an associated inflammatory cell infiltrate. Focally, storiform to fascicular growth. The surface epithelium varies from ulcerated to attenuated to intact squamous epithelium. B The submucosal spindle cell proliferation approximates the surface squamous epithelium, but there is usually no direct continuity or surface epithelial dysplasia.
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