Case Report
Copyright ©The Author(s) 2021.
World J Clin Oncol. Apr 24, 2021; 12(4): 282-289
Published online Apr 24, 2021. doi: 10.5306/wjco.v12.i4.282
Figure 2
Figure 2 Histologic examination of the tongue mass. A: Tongue mass characterized by high-grade, poorly-differentiated spindle and epithelioid malignant neoplasm (magnification, 100 ×); B and C: Positive for cytokeratin AE1/AE3 (B) and TTF-1 (C), consistent with a metastatic carcinoma of pulmonary origin (magnification, 200 ×); D: The neoplastic cells are completely negative for p40 (magnification, 200 ×).