MRI Visualization and Distribution Patterns of Foreign Modeling Agents: A Brief Pictorial Review for Clinicians

Figure 4

MRI using STIR sequence in the axial plane shows infiltration of the ganglia and the different patterns present in the gluteal region. Unknown substance, 2000 ml. (a) Depicts a mixed globular and diffuse pattern that affects the gluteus maximus muscle and the subcutaneous cellular tissue of the gluteal regions (small and large, white arrowheads) migration to the left ischiorectal fossa. (b) Infiltration by modelling material of the inguinal ganglia and gluteus maximus muscle (white arrows and arrowheads). Infiltration of ganglia points to the engulfment of injectable filler by macrophages and their eventual migration to regional ganglia.

(a)

(b)