Figure 4From: Basaloid squamous cell carcinoma in the nasal cavity treated with proton beam therapy concurrent with cisplatin: a case report Histological and immunohistochemical images. (a), (b) Biopsy specimen of nasal tumor shows cords of invasive basaloid cells with peripheral palisading. The tumor had hyperchromatic nuclei with a high nuclear-to-cytoplasmic ratio (hematoxylin and eosin stain). (c) Immunohistochemical stains of the tumor were positive for cytokeratin 14.Back to article page