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Utility of Endoscopic Ultrasound-Guided Fine-Needle Aspiration in a Paediatric Population: A Single-Centre Experience
Shaarif Bashir1, Asif Loya1, Mudassar Hussain1
1Department of Pathology, Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan.
Introduction:
Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is a modern and minimally invasive technique to acquire diagnostic material from within the gastrointestinal tract, as well as from adjacent organs and structures, which can help in the diagnosis and staging of a variety of gastrointestinal malignancies, as well as for non-malignant conditions. Though well described in adults, there is limited literature on the diagnostic utility of EUS-FNA in paediatric patients. The objective of this study was to evaluate the diagnostic accuracy and clinical utility of EUS-FNA in paediatric patients performed at our centre over the last 17 years.
Materials And Methods:
After obtaining Institutional Review Board approval, 63 cases of paediatric EUS-FNA performed at SKMCH&RC from 2005 to 2022 were retrieved. A 22-gauge EUS-FNA needle was used for obtaining samples with the use of suction (when required). The sample was then smeared onto glass slides, with half being stained with RAPI stain while the rest with the Papanicolaou stain. Demographic details, indication for the procedure, results of rapid on-site adequacy status (ROSE), site of lesion, and cytological diagnosis were reviewed and analysed.
Results:
Of the 63 patients, 55 (87.3%) had an adequate sample (confirmed on ROSE). Forty-two (66.7%) were male and the mean age was 12.4 years. The most frequent indication of EUS-FNA was a sampling of enlarged lymph nodes (74.6%). The most common sites of nodal aspiration were sub-carinal (33.3%) and celiac lymph nodes (14.3%). EUS-FNA of a pancreatic lesion accounted for an additional 17.5% of cases. Involvement by Hodgkin's lymphoma was the most common diagnosis (25.4%) followed by granulomatous inflammation (19.1%). Cases of solid pseudo-papillary tumour (4.8%) and recurrent Wilm's tumour (3.2%) were also diagnosed. No patient suffered complications, and none required hospital admission, post-procedure. The sensitivity, specificity, PPV, and NPV of EUS-FNA were 98.1, 83.3, 96.4, and 90.9%, respectively.
Conclusion:
EUS-FNA is a safe, well-tolerated, minimally invasive outpatient setting procedure with high sensitivity and significant utility in the diagnosis and staging of disease.
