FIGURES LEGEND
Figure 1. Pre-operative ultrasound scan: reported as cystic
mass with mobile internal echoes to right of midline (1A); pre-operative
magnetic resonance imaging scan showing heterogenous enhancing soft
tissue changes with few cystic/fluid components at right parapharyngeal
space extending to retropharyngeal space (1B); histopathology showing
thymic tissue with Hassall’s corpuscle (arrow), H&E (1C).
Figure 2. Preferred Reporting Items for Systematic Reviews and
Meta-Analyses (PRISMA) flow diagram.
Figure 3. Total number of ectopic cervical thymus cases
identified from the systematic review.