Related Experiment Video
Updated: Dec 18, 2025
Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules
Published on: May 23, 2015
Radiological features and management of retained needles
Andrea Contegiacomo1, Marco Conti1, Pietro Trombatore2
1Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
Abstract:
The identification of retained needles is essential because of their sharp structure with possible life-threatening complications. However, radiological evaluation could be challenging, especially in case of needles' relatively poor conspicuity and small dimension. This pictorial essay focuses on clinical issues (needle features, retention mechanisms and associated complications) and technical aspects (choice of the best diagnostic modality and technique) that can lead the radiologist to an earlier and proper diagnosis of needle retention in order to provide the best treatment for the patient.
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