EN
TÜRKÇE
Poster - 70
Diagnostic Accuracy of Ultrasound-Guided Core Needle Biopsy in Pediatric Oncology
Marzena Kozakiewicz, Anna Wojtylko, Aleksandar Moskal, Maria Sobczyk, Ewa Mika, Malgorzata Rapala, Jan Godzinski
Department of Pediatric Surgery, Marciniak Specialist Hospital, Wroclaw, Poland
Background and Aim: Ultrasound-guided core needle biopsy (CNB) is increasingly used in pediatric oncology as a minimally invasive method for obtaining tissue samples from lesions suspected of malignancy. It offers high diagnostic accuracy, low complication rates, and allows for comprehensive histopathological evaluation. The aim of this study was to evaluate the diagnostic performance and safety of CNB in a pediatric population.
Materials and Methods: We retrospectively analyzed CNBs performed between 2023 and 2024 in patients aged 4 months to 17 years. All procedures were performed under ultrasound guidance using an 18G tru-cut needle. A minimum of four needle passes was obtained in each case to ensure sufficient tissue for analysis.
Results:Fifteen biopsies were included in the study, renal malignancies were diagnosed in 8 cases, 1 renal angiomyolipoma, 2 rhabdomyosarcoma, 2 neublastoma and 2 non-neoplastic lesions. In all cases, the CNB diagnosis was concordant with the final histopathological diagnosis established after surgical resection. No false-positive or false-negative results were observed. Only 1 minor bleeding occured.
Conclusions: Ultrasound-guided CNB is a safe, accurate, and minimally invasive diagnostic technique inpaediatric oncology. It provides adequate tissue for definitive histological diagnosis, including immunohistochemical analysis. In our experience, number of passages should not be lower than 4.