Sensitivity and Specificity of Fine Needle Aspiration Cytology in Solid Neck Mass

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Banlue Uranakan

Abstract

Background: Fine needle aspiration cytology is a valuable technique in the work-up of masses arising within neck and represents a screening, inexpensive, minimal invasive and rapid technique to sample masses found in neck at otolaryngology department in Buriram hospital.
Objective: To determine the sensitivity and specificity of fine needle aspiration cytology in diagnosis of solid neck mass by comparing the final pathological diagnosis with the initial FNAC.
Material & Methods: A retrospective study was conducted by reviewing the medical records of patients with thyroid and salivary gland tumors who underwent pre-operative FNAC and thyroidectomy at division of Otorhinolaryngology between 1st. January 2011 to 31th. December 2015.
Results: The total of 468 patients were included. FNAC was correlated with histology and the sensitivity, specificity, accuracy in diagnosis of neck mass, positive predictive value and negative predictive value were calculated. The overall results showed a sensitivity of 39.2%, specificity of 99.2%, diagnostic accuracy of 89.2%, positive predictive value of 90.6% and negative predictive value of 89.7% respectively.
Conclusion: FNAC for solid neck mass had high specificity and high diagnostic accuracy in diagnosis of thyroid and salivary gland tumors.
Keyword: FNAC ; Fine Needle Aspiration Cytology, Solid neck mass

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References

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