title: An 18FDG-PET/CT finding of a mediastinal abscess.
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.
authors: St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland. yvonne.purcell@gmail.com
authors: Yvonne Marie
authors: YM
authors: Purcell
authors: Chris
authors: C
authors: Hegarty
authors: Osama
authors: O
authors: Sharaf
authors: Aurélie
authors: A
authors: Fabre
authors: Stephen J
authors: SJ
authors: Skehan
mesh_terms: D000038:Abscess / Q000000981:diagnostic imaging*; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000188:drug therapy / Q000532:radiotherapy; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D008482:Mediastinum / Q000000981:diagnostic imaging*; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18