Review Article

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

Figure 8

Magnetic resonance imaging STIR sequence applied in two different patients with complications in the gluteal region. Patient 1: (a) T2 axial sequence: the modeling material’s presence affects all the subcutaneous cellular tissue of the hips with a diffuse pattern left gluteal region. Note the hypointense signal in this sequence, with inflammatory changes of the major gluteal muscles (dotted white rectangle); the patient presented resection of the subcutaneous cellular tissue of the right gluteal region due to a complication of necrosis (dotted white line) and can be observed the infiltration to the right gluteal muscle (white arrowhead). (b) Coronal sequence: the modeling material migration to the ischiorectal fossae (white arrowheads). Patient 2: unknown substance, an approximate amount of 1000 ml. (c) Axial plane shows infiltration with modeling material with a mixed globular and diffuse pattern that only affects the subcutaneous cellular tissue of the gluteal regions (white arrowheads). (d) Coronal plane: the signal of the modeling material is hypointense (white arrowheads).
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