caa a22 4500 475756037 CHVBK 20180406123538.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1007/s002470050748 doi (NATIONALLICENCE)springer-10.1007/s002470050748 Needle localization of small pediatric tumors for surgical biopsy [Elektronische Daten] [Brian W. Hardaway, F. A. Hoffer, Bhaskar N. Rao] Background. Small pediatric tumors may be difficult to biopsy or resect. Objective. To examine the benefits of needle localization of a variety of small pediatric tumors before surgical biopsy or excision. Materials and methods. Seven patients aged 1-19 years underwent 12 procedures for needle localization of suspected tumor. Two patients had undergone previous biopsies without needle localization with negative results. Computed tomography (four patients) or ultrasonography (three patients) guided needle placement. Each patient had suspected tumor(s) in 1-3 anatomical sites, including thigh (7), lung (2), parasacral region (2), and iliac bone (1). Results. All 12 lesions (9 less than 1 cm3 in volume) were successfully localized for excision or biopsy. Three small (<1 cm3) soft-tissue lesions (two ganglioneuroblastomas and one ganglioneuroma) were excised from one patient, a 0.65-cm3 residual soft-tissue sarcoma from another; and recurrent bilateral teratomas from a third. Two peripheral primitive neuroectodermal tumors were excised with positive margins from a fourth patient. Two lesions contained only fibrosis, as determined by histopathology. Two other patients underwent thoracoscopic removal of lung metastases that were less than 0.1 cm3. Conclusion. Needle localization allows effective and less invasive excision or biopsy of a variety of small pediatric soft-tissue lesions. Springer-Verlag Berlin Heidelberg, 2000 Hardaway Brian W. Department of Diagnostic Imaging, St. Jude Children's Research Hospital, 332 North Lauderdale St., Memphis, TN 38105-2794, USA, US aut Hoffer F. A. Department of Diagnostic Imaging, St. Jude Children's Research Hospital, 332 North Lauderdale St., Memphis, TN 38105-2794, USA, US aut Rao Bhaskar N. Department of Surgery, St. Jude Children's Research Hospital, Memphis Tennessee, USA, US aut https://doi.org/10.1007/s002470050748 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s002470050748 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hardaway Brian W. Department of Diagnostic Imaging, St. Jude Children's Research Hospital, 332 North Lauderdale St., Memphis, TN 38105-2794, USA, US aut NATIONALLICENCE 700 1- Hoffer F. A. Department of Diagnostic Imaging, St. Jude Children's Research Hospital, 332 North Lauderdale St., Memphis, TN 38105-2794, USA, US aut NATIONALLICENCE 700 1- Rao Bhaskar N. Department of Surgery, St. Jude Children's Research Hospital, Memphis Tennessee, USA, US aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer