Fig. 1From: Spindle cell variant of medullary thyroid carcinoma: a clinicopathologic study of four casesHistiological findings. Tumor show predominantly monomorphic spindle cells, arranged in fascicles or interweave pattern (a), separated by fibrovascular amyloid stroma (b) (H&E, original magnification, × 200). Tumor cells show short or long spindle nuclei, abundant cytoplasm and rare mitoses (c) (H&E, original magnification, × 400)Back to article page