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  Indian J Med Microbiol
 

Figure 1: (a) Colloid in napkin fold pattern on liquid-based cytology (Papanicolaou stain, ×400). (b) Hyperplastic nodule on liquid-based cytology (Papanicolaou stain, ×400). (c) Medullary carcinoma of thyroid showing scattered cells on liquid-based cytology (Papanicolaou stain, ×400). (d) Follicular carcinoma of thyroid showing vague microfollicular pattern (Papanicolaou stain, ×400). (e) Papillary carcinoma of thyroid showing papillary architecture along with singly scattered cells on liquid-based cytology (Papanicolaou stain, ×400). (f) Cytoplasmic positivity of calcitonin in tumor cells in medullary carcinoma on liquid-based cytology (Immunocytochemistry, ×400). (g) Nuclear positivity of thyroid transcription factor one in tumor cells in follicular carcinoma on liquid-based cytology. (Immunocytochemistry, ×400)

Figure 1: (a) Colloid in napkin fold pattern on liquid-based cytology (Papanicolaou stain, ×400). (b) Hyperplastic nodule on liquid-based cytology (Papanicolaou stain, ×400). (c) Medullary carcinoma of thyroid showing scattered cells on liquid-based cytology (Papanicolaou stain, ×400). (d) Follicular carcinoma of thyroid showing vague microfollicular pattern (Papanicolaou stain, ×400). (e) Papillary carcinoma of thyroid showing papillary architecture along with singly scattered cells on liquid-based cytology (Papanicolaou stain, ×400). (f) Cytoplasmic positivity of calcitonin in tumor cells in medullary carcinoma on liquid-based cytology (Immunocytochemistry, ×400). (g) Nuclear positivity of thyroid transcription factor one in tumor cells in follicular carcinoma on liquid-based cytology. (Immunocytochemistry, ×400)