Diagnosis and Treatment of Metastases to the Thyroid Gland: a Meta-Analysis

Patrizia Straccia, Claudia Mosseri, Chiara Brunelli, Esther Diana Rossi, Celestino Pio Lombardi, Alfredo Pontecorvi, Guido Fadda

Risultato della ricerca: Contributo in rivistaArticolo in rivista

11 Citazioni (Scopus)


The thyroid is a rare site of clinically detectable tumor metastases; even though the gland is a highly vascularized structure, the frequency of metastases in the routine practice is less than 0.2% of all thyroid malignancies. The purpose of our meta-analysis is to evaluate the frequency of metastatic diffusion from other primary tumors to the thyroid gland and to suggest the best possible treatment through an evidence-based study. Relevant studies were identified by searching the following databases: PubMed, Scopus, and Web of Science. We selected all English-written articles published from 1995 to 2015. Studies were considered eligible if they reported the timing of metastatic spread and the site of the primary tumor in respect to the diaphragmatic region. Case reports were not included. Twenty-eight studies accounted for 514 patients. The rate of metachronous metastases was 69%. Fifty-three percent of primaries originated from the infradiaphragmatic region. Fine needle aspiration biopsy (FNAB) was done in 154 patients and 195 patients were treated mostly with surgery. A prevalence of primary tumors from the infradiaphragmatic region and of metachronous metastases was observed. Knowledge of the clinical history and the ancillary techniques can improve the sensitivity and accuracy of FNAB. Thyroidectomy may be considered a more effective treatment than radio-chemotherapy.
Lingua originaleEnglish
pagine (da-a)112-120
Numero di pagine9
RivistaEndocrine Pathology
Stato di pubblicazionePubblicato - 2017


  • 2734
  • Diagnosis
  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Humans
  • Meta-analysis
  • Metastasis
  • Surgery
  • Thyroid Neoplasms
  • Thyroid neoplasm


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