PMC6434312_01
Amyloid accumulation was seen as a pink coloured amorphous material in this section which is typical for medullary thyroid cancer on Congo Red staining. (20X).
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fig1
Amyloid-like material accumulation and hemorrhagic stroma were detected on MTC (Figure 1).
Diffuse cytoplasmic positivity for calcitonin immunohistochemical staining was present in medullary thyroid carcinoma.
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fig2
Chromogranin A and calcitonin was positive on immunohistochemical staining which was compatible with MTC (Figures 2 and 3).
Diffuse cytoplasmic positivity for chromogranin A immunohistochemical staining was present in medullary thyroid carcinoma (10X).
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fig3
Chromogranin A and calcitonin was positive on immunohistochemical staining which was compatible with MTC (Figures 2 and 3).
Nuclear grooves with glassy nucleus, peripherally located prominent nucleolus, and nuclear overlapping seen typical for papillary thyroid carcinoma on hematoxylin and eosin staining. H&E(40X).
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fig4
On the light microscopy papillary structures with thyrocytes having nuclear clearing, grooving, and overlapping around fibrovascular core were detected (Figure 4).