Fig. 2
From: Anti-Hu Antibody Associated Paraneoplastic Cerebellar Degeneration in Head and Neck Cancer
Histology and Immunohistochemistry of the Primary Tumor and Lymph Node Metastasis. Hematoxylin and Eosin (HE) stain of the primary tumor (a) and metastasis (b) shows the biphasic morphology of the spindle cell carcinoma. Immunohistochemical staining with AE1/AE3 demonstrates the epithelial elements of the primary tumor (c) and the cervical lymph node metastasis (d) whereas vimentin, a marker of epithelial-to-mesenchymal transition, spares these parts (e, f)