Calcitonin levels in washout samples vs. cytology in the detection of malignant lymph node metastasis in recurrent medullary thyroid cancer
Turk J Med Sci
; 51(6): 3061-3066, 2021 12 13.
Article
en En
| MEDLINE
| ID: mdl-34519193
ABSTRACT
Background/aim:
Calcitonin level in fine-needle aspirate washout fluid (Ct-FNA) was extensively studied for thyroid nodules and lymph nodes (LN). However, the data was scarce for neck recurrences/metastases of medullary thyroid cancer (MTC). Thus, the diagnostic accuracy of Ct-FNA and cytology in the detection of neck LN metastases of recurrent MTC cases were assessed. Materials andmethods:
The database of MTC patients between 2010 and 2021 was retrospectively reviewed. A total of 32 patients with recurrent MTC and suspicious LN who underwent FNA and Ct measurement from washout samples were included in this study. Preoperative serum Ct (sCt), Ct-FNA, Ct-FNA/sCt ratio, cytology data were recorded for all participants.Results:
Median sCt of 32 patients and Ct-FNA washout fluid levels of operated suspicious 44 LNs were 723 (549000) pg/mL and 1800 (1519500) pg/mL, respectively. The diagnostic accuracy of Ct-FNA washout fluid was greater than cytology (95.4% vs. 86%, respectively). Using a cut-off level of >638.5 pg/mL, the Ct-FNA predicted the diagnosis of LN metastasis of recurrent MTC with a sensitivity of 80% and specificity of 94.9%. Furthermore, using a cut-off level of >1.16, the Ct-FNA/sCt ratio well predicted the diagnosis of LN metastasis of recurrent MTC with a sensitivity of 92.3% and specificity of 100%.Conclusion:
As Ct-FNA has greater diagnostic accuracy in our study, it would be complementary to cytology results to localize metastatic LNs in recurrent MTC. Furthermore, for the first time, we demonstrated that the Ct-FNA/sCt ratio was a better predictor of metastatic LNs in recurrent MTC than a particular cut-off for Ct-FNA alone.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Calcitonina
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Neoplasias de la Tiroides
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Biomarcadores de Tumor
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Carcinoma Neuroendocrino
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Ganglios Linfáticos
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Metástasis Linfática
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Recurrencia Local de Neoplasia
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Turk J Med Sci
Año:
2021
Tipo del documento:
Article
País de afiliación:
Turquía