Possible silicone injections or improper technique? Will an ultrasound be enough to detect if silicone has migrated? (Photos)

This is a difficult situation to address.  If you are contemplating trying to remove the silicone material, an exam followed by imaging may be appropriate. Unfortunately, I am having to do more and more silicone removal procedures.  The material is removed in the first stage.   A period of 3 months or so is observed.  A BBL can be performed later to improve the appearance.  

Thanks for posting. This is a concerning finding, and is possibly a foreign substance such as silicone that could migrate in such a way. Fat really does not migrate after it is transferred. This would be a non-approved use of silicone and that could be hazardous to your health. Make sure you are seeing an American Board of Plastic Surgery/ASAPS member surgeon for your BBL needs.

Thank you for your inquiry, yes the an ultrasound is capable and can be enough to differentiate if it is fat or silicone , what you have , we can say that is more likely that it might be something else but fat , because fat works as a graft , because of this it won’t have this behavior 
We hope this answer your question

you can definitely undergo BBL revision to correct buttocks asymmetry, as well as proper contouring of your upper, middle, lower back, flanks, and posterior thighs as you are lacking harmony and proper transitions between these areas.You are an excellent candidate for a Brazilian Butt Lift (BBL). The optimal BBL outcomes are achieved with: 1) use of VASER liposuction to harvest the fat, 2) a closed looped system such as Puregraft to process the fat, and 3) strategic micro-packet transplant technique. These three processes have demonstrated over 95% fat graft take. This means that your results will be stable as long as you maintain your weight. As an official VASER trainer, I am routinely referred unhappy BBL patients. One of the most common reasons for disgruntled BBL patients is that patients are not able to accurately communicate their desired buttocks goals to their surgeons.  A buttocks assessment tool ban be an invaluable tool to communicate to your surgeon the exact buttocks size and shape you are desiring. A Skype or Facetime consultation with a BBL specialist can help you get an accurate recommendation and pricing.
Respectfully,
Arian Mowlavi MD, FACS
Realself 100 Hall of Fame Inductee