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Table 1 Benign and Malignant causes of thyroid nodules

From: RETRACTED ARTICLE: Thyroid nodules update in diagnosis and management

 Colloid nodule  
 Hashimoto thyroiditis  
 Simple or hemorrhagic cyst  
 Follicular adenoma  
 Subacute thyroiditis  
  Follicular cell-derived carcinoma:  
   PTC, follicular thyroid carcinoma, anaplastic thyroid carcinoma  
  C-cell–derived carcinoma:  
  Thyroid lymphoma  
  Metastatic carcinoma (3 most common primaries are renal, lung & head-neck)