Journal of Cytology
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Year : 2019  |  Volume : 36  |  Issue : 4  |  Page : 189-195

EUS-guided FNA in diagnosing pancreatic lesions: Strength and cytological spectrum

1 Department of Pathology, SGPGIMS, Lucknow, Uttar Pradesh, India
2 Department of Pathology, I.L.B.S., New Delhi, India
3 Department of Hepatology, I.L.B.S., New Delhi, India
4 Department of Radiology, A.I.I.M.S., Jodhpur, Rajasthan, India
5 Department of Biostatistics, I.L.B.S., New Delhi, India

Correspondence Address:
Dr. Archana Rastogi
Department of Pathology, Institute of Liver and Biliary Sciences, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JOC.JOC_5_18

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Introduction: Early and accurate diagnosis is paramount for improving the therapeutic efficacy of pancreatic cancers. Endoscopic ultrasonography–fine needle aspiration (EUS-FNA) cytology has come up with the advantage of an early and accurate diagnosis of pancreatic cancers. This study was conducted to analyze the spectrum of pancreatic lesions cytology, and appraise the diagnostic accuracy of EUS-FNA cytology for pancreatic solid and cystic lesions. Materials and Methods: This retrospective study includes 288 EUS-guided pancreatic FNA cases. Clinical data, laboratory tests, cytopathology, histopathology, and imaging reports were retrieved. The final diagnosis was based on EUS-FNA cell block and/or pathology in surgical specimens, with immunohistochemistry support. The results of EUS-guided FNA were compared with the final diagnoses to calculate the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). Results: Among 288 EUS-guided pancreatic FNA cases, 175 (62.0%) were malignant. The mean age was 57.8 ± 13.5 years and 50.1 ± 13.7 years, and the mean size of the lesion was 4.1 ± 1.8 cm and 2.2 ± 1.1 cm in malignant and benign groups, respectively. Sensitivity, specificity, PPV, and NPV of EUS-FNA cytology for solid malignant lesions were 98.3%, 95.1%, 98.3%, and 95.1%, and those for cystic lesions were 88%, 92.3%, 100%, and 100%. Diagnostic accuracy of EUS-FNA cytology for solid and cystic pancreatic lesions is 97.4% and 95.0%, respectively. In conclusion of the above; diagnosis of pancreatic solid and cystic malignancy can be assigned from a composite of the EUS-FNA cytology, cell block preparation and immunohistochemistry Diagnosis of pancreatic solid and cystic malignancy can be assigned from a composite of the EUS-FNA cytology, cell block preparation, and immunohistochemistry.

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