Post-treatment appearances, pitfalls, and patterns of failure in head and neck cancer on FDG PET/CT imaging
Open Access
- 1 January 2014
- journal article
- pictorial essay
- Published by Scientific Scholar in Indian Journal of Nuclear Medicine
- Vol. 29 (3) , 151-7
Abstract
Majority of patients with head and neck cancer are treated with combined treatment regimes such as surgery, radiation therapy, and chemotherapy. The loss of structural symmetry and imaging landmarks as a result of therapy makes post-treatment imaging a daunting task on conventional modalities like computed tomography (CT) scan and magnetic resonance imaging (MRI) as well as on 18 Fluorine-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography (18F FDG PET/CT). Combined multimodality treatment approach causes various tissue changes that give rise to a spectrum of findings on FDG PET/CT imaging, which are depicted in this atlas along with a few commonly encountered imaging pitfalls. The incremental value of FDG PET/CT in detecting locoregional recurrences in the neck as well as distant failures has also been demonstrated.Keywords
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