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Table 3 The analysis for the false-negative cases

From: Causes of misdiagnoses by thyroid fine-needle aspiration cytology (FNAC): our experience and a systematic review

Analysis

Number

Specimen problem

 PTMC

6

 Diffuse fibrosis

2

 Thyroid cancer in patients with multinodular goiter

4

 Nonspecific factors

2

Interpretation error

 FVPTC

1

Total

15

  1. PTMC Papillary thyroid microcarcinoma, FVPTC follicular variant of papillary thyroid carcinomas