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[Diagnosis of metastases in patients with papillary thyroid cancer by the measurement of thyroglobulin in fine needle aspirate].

Authors
  • Biscolla, Rosa Paula M
  • Ikejiri, Elza S
  • Mamone, Maria Conceição
  • Nakabashi, Cláudia C D
  • Andrade, Victor P
  • Kasamatsu, Teresa S
  • Crispim, Felipe
  • Chiamolera, Maria Izabel
  • Andreoni, Danielle M
  • Camacho, Cleber P
  • Hojaij, Flávio C
  • Vieira, José Gilberto H
  • Furlanetto, Reinaldo P
  • Maciel, Rui M B
Type
Published Article
Journal
Arquivos Brasileiros de Endocrinologia & Metabologia
Publisher
SciELO
Publication Date
Apr 01, 2007
Volume
51
Issue
3
Pages
419–425
Identifiers
PMID: 17546240
Source
Medline
License
Unknown

Abstract

The widespread use of neck ultrasonography (US) during the follow-up of patients with papillary thyroid carcinoma (PTC) has led to the discovery of small cervical lymph nodes (LN). Although US has a high sensitivity for diagnosing LN, fine needle aspiration biopsy (FNA) and measurement of thyroglobulin in fine needle aspirates (FNA-Tg) have proven to be invaluable tools. The aim of this study is to determine the sensitivity of the combined use of neck US, FNA biopsy and FNA-Tg for diagnosis of cervical lymph nodes. We have studied 32 patients with 44 LN detected by US, 19 classified as inflammatory and 25 as suspicious. 15 of those 25 suspicious LN had high FNA-Tg (13 of the 15 had positive cytology and 2 indeterminate). All of these 15 LN (11 patients) were proven to be PTC metastasis by histopathology. All 19 inflammatory LN and those 10/25 suspicious LN, had cytology negative for malignancy and undetectable FNA-Tg. We conclude that fine needle aspiration biopsy and FNA-Tg combined with neck US are essential for detecting positive cervical lymph nodes due to its high sensitivity and specificity and it should be considered the standard for investigating locally recurrent disease in patients with PTC.

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