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Table 2 Diagnostic features of fillers in the studied patients

From: Injectable fillers: imaging features and related complications

Imaging features Injectable fillers Lipofilling
T1 FSE Hypointense Hyperintense
T2 FSE Hyperintense due to high water contents Hyperintense
Fat suppression sequence (Dixon method water only sequence ) No fat suppression Suppression of signal
Diffusion weighted imaging No restricted diffusion No diffusion restriction
Contrast enhanced sequences No enhancement, thin rim enhancement likely due to soft tissue reactive changes No enhancement, thin rim enhancement likely due to soft tissue reactive changes
Common locations Nasolabial fold
Medial and middle cheek superficial fat compartments
Peri-oral region
Gluteal regions
  1. FSE fast spin echo