Table 1. Immunohistochemical results of pendrin staining.
Staining grade
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Intense
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Moderate
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Tissues | No. of cases | ma | m+c | c | m | m+c | c | Focal | No staining |
Normal thyroid | 47 | 47 | |||||||
Graves' disease | 10 | 10 | |||||||
Nodular goiter | 28 | 28 | |||||||
Follicular adenoma | 15 | 1 | 5 | 3 | 5 | 1 | |||
Follicular carcinoma | 15 | 1 | 6 | 4 | 1 | 3 | |||
Papillary carcinoma | 30 | 19 | 4 | 3 | 4 | ||||
Anaplastic carcinoma | 2 | 2 | |||||||
Medullary carcinoma | 8 | 8 |
m=membranous staining; m+c=membranous and cytoplasmic staining; c=cytoplasmic staining.