Microscopic examination of the processed specimen shows fragments of a malignant neoplasm made up of large proliferating squamous cells possessed with round to avoid, pleomorphic and hyperchromatic nuclei some of which appear to be vesicular with prominent nucleoli sorrounded by moderate to scanty amount of cytoplasm. The form solid nests and cord patterns infiltrating the supporting stroma . The individual tumor cells have undergone individual keratinization with no ketatin pearl formation. Mitotic figures are occasionally seen.