MRI
Axial T2
Sagittal T2 fat sat
Coronal T2 fat sat
Sagittal T1
Sagittal T1 C+ fat sat
Axial T1
Axial T1 C+ fat sat
Coronal T1
Coronal T1 C+ fat sat
Axial DWI
Axial DWI
There is a large left side neck mass with features of an retropharyngeal abscess with lateral extension intro the left parapharyngeal space and behind the carotid space displacing the carotid vessels anterolaterally.
There central T2 hyperintensity (heterogeneous and not as bright as CSF), central low T1, an enhancing peripheral margin and diffusion restriction.
The trachea and oesophagus are displaced by the mass.