Figure 2From: Accuracy of microRNAs as markers for the detection of neck lymph node metastases in patients with head and neck squamous cell carcinomaImmunohistochemistry staining for cytokeratins (M3515, clone AE1/AE3, Dako) in histologically negative lymph nodes of HNSCC patients. (A) Lymph node without evidence of metastases. (B) Lymph node with macrometastases. (C) Lymph node with micrometastases. (D) Lymph node with isolated tumor cells. A, B, and C: 40× magnification; D: 400× magnification.Back to article page