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Published on: September 5, 2017
An 18FDG-PET/CT finding of a mediastinal abscess
Yvonne Marie Purcell1, Chris Hegarty, Osama Sharaf
1St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland. yvonne.purcell@gmail.com
Abstract:
A 66-year-old man with left pyriform fossa squamous cell carcinoma (T2N0) was treated with chemoradiation. Nine months later, an emergency tracheostomy was performed for respiratory distress. Contrast-enhanced neck and thorax CT demonstrated a right pyriform mass. FDG-PET/CT showed linear increased uptake extending superiorly from the tracheostomy to the right Eustachian tube and inferiorly to the posterior mediastinum. Postmortem examination confirmed a 7 × 2.2 cm abscess extending from the right parapharyngeal, peritracheal, and prevertebral structures to the mediastinum.
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