Fig. 3From: Anaplastic thyroid carcinoma with chondrosarcomatous differentiation: a case reportImmunohistochemical staining of the specimens. a. The low-grade hyaline-type cartilage and the spindle cells in the left thyroid specimen are positive for vimentin (90%) (× 100). b. The spindle tumor cells in the resected right thyroid lobe are negative for cytokeratin (× 100). c. The spindle tumor cells in the resected left thyroid lobe are negative for cytokeratin (× 100). d. The spindle cells in the resected right thyroid lobe show high expression of Ki-67 (20%) (× 100)Back to article page