Abstract
Image guided fine needle aspiration cytology (FNAC) is a safe, simple, rapid, cost effective and accurate modality in evaluation of deep seated lumps (abdominal, pelvic and intrathoracic masses) which are unapproachable by blind FNAC. In this study, a critical analysis of the utility of image guided FNAC in deep seated and otherwise inacessible mass lesions was carried out. Fifty-four ultrasound (USG) or computed tomography (CT) guided FNACs from lumps at any location in the body, that is, thoracic, abdominal, pelvic etc over a period of 3 years (January 2012- December 2014) were included in the study. The most common site aspirated, the indications for a guided aspiration and the accuracy of aspiration cytology in comparison to the histological diagnosis were evaluated, wherever possible. Fifty-four image guided FNACs were performed (46 USG guided and 8 CT guided). Inconclusive, inflammatory, benign tumors, suspicious and malignant lesion rates were 5.6%, 29.6%, 11.1%, 5.6%, and 48.1%, respectively. The most common site was the liver (25.5%), followed by the thyroid (18.5%), lung (14.8%), gallbladder (11.1%), and lymph nodes (7.4%). Cytohistological correlation could be performed in 32 cases with a diagnostic accuracy of 100%. FNAC coupled with a diagnostic imaging technique such as USG or CT can improve the diagnostic yield and a definite diagnosis can be reached in most of the cases.
Highlights
Fine needle aspiration cytology (FNAC) has been used as a primary modality for evaluation of all the palpable lumps in the body for a long time
FNAC coupled with a diagnostic imaging technique such as USG or computed tomography (CT) can improve the diagnostic yield and a definite diagnosis can be reached in most of the cases
The technique is safe, simple, rapid, cost effective and accurate in the evaluation of deep seated lumps which are unapproachable by blind FNAC
Summary
Fifty-four image guided FNACs were performed (46 USG guided and 8 CT guided). Inconclusive, inflammatory, benign tumors, suspicious and malignant lesion rates were 5.6%, 29.6%, 11.1%, 5.6%, and 48.1%, respectively. The most common site was the liver (25.5%), followed by the thyroid (18.5%), lung (14.8%), gallbladder (11.1%), and lymph nodes (7.4%). Cytohistological correlation could be performed in 32 cases with a diagnostic accuracy of 100%
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