Role of ultrasound and ultrasound guided fine needle aspirationin diagnosis of peritoneal diseases

Abstract

Introduction: Peritoneal diseases have different types of presentations which can be detected by endosonography. The aim of our study is to assess the performance of ultrasound (US) and US-guided FNA in diagnosis of different peritoneal diseases.Material & methods: we collected the data from 53 Egyptian patients with suspected peritoneal lesions and localized ascites. The detailed sonographic features were assessed for any peritoneal masses, deposits, omental heterogeneity and thickness, and for the detection of any fluid collections. The final diagnosis was reached by the positive cytopathological examination of aspirate taken by FNA. The patients who lost follow up, with severe coagulopathy or whose final diagnosis was not reached were ruled out from the study.Result: ultrasound showed high sensitivity (97.9%) with 95.9% PPV, 75% NPV and 94.34% accuracy while US-FNA shows high specificity (100%) with 100% PPV, 45.45% NPV and 88.68% accuracy rate in diagnosis of different peritoneal diseases. Conclusion:Ultrasound and FNA are very valuable in detection and diagnosis of different peritoneal benign and malignant diseases. In spite of statistically significant increase in sensitivity of US diagnosis of different peritoneal diseases more than that diagnosed by FNAC, yet, US FNA is crucial for confirming the diagnosis for determination of the plan of management of different peritoneal lesions.