FNAB-Tg improves the diagnostic performance of FNAB-C in LN metastases, even when the latter is unable to diagnose the metastases. For that reason, FNAB-Tg should be included in the monitoring of DTC.

Thyroid Biopsy: Value of the Association of Two Techniques. Thyroid nodules have a high incidence in the population. This study aims to observe the value of the association between the aspiration and nonaspiration biopsy and to compare the obtained cytology by these two techniques. Sixty-one patients with thyroid nodules were selected and underwent ultrasound-guided thyroid biopsies by both techniques. Quality of the obtained material was analyzed by two independent pathologists, according to five criteria. There was no difference between the techniques regarding the sum of the points of the criteria when they were analyzed together or separately (p>0.05). The kappa index between the techniques was very small (k=0.13). There was no significant difference between techniques when they were compared to the sum of the criteria according to the pathologists (p>0.05). The non-aspiration technique was superior to the aspiration one in the hyperechogenic nodules (p<0.05). The techniques provided similar quality material and the association of both techniques reduced the number of false diagnoses.

Os autores relatam o caso de uma paciente com hiperparatireoidismo primário causado por adenoma de paratireóide diagnosticado através de punção aspirativa por agulha fina (PAAF) no pré-operatório. A paratireóide aumentada foi visualizada pela ultra-sonografia (US) e submetida à PAAF, que foi compatível com adenoma de paratireóide. Realizou-se a remoção cirúrgica do adenoma e o histopatológico resultou concordante com a citologia. Este relato destaca a importância da localização e do diagnóstico citológico pré-operatório das lesões de paratireóide para proporcionar uma abordagem cirúrgica menos agressiva.

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