Could this be a lipoma on my chin? (Photo)

It is always hard to tell definitively based on photos, but I believe he was referring to the combination of skin, muscle, fat of the chin instead of something like a lipoma. Normally a lipoma is soft and mildly mobile. I have not seen many involving this region of the face. A CT scan or ultrasound would be able to definitively rule out a lipoma or other soft tissue growth.
Hope this helps!Kyle Kimura, MD

Lipomas are benign fatty tumors that occur under the skin and less commonly within the muscle. They are associated with mild discomfort and a lump underneath the skin. It is always best to talk to an expert plastic surgeon to determine whether the lipoma is possibly a cyst or a tumor or hernia. We would have to remove the lipoma to be sure that it is not something else and we usually do this by sending it to a pathologist for evaluation. If a lipoma is painful, then an exam is needed to make sure it is not compressing on a nerve or whether the diagnosis is different. Aftercare for a lipoma includes gentle compression and Plato’s Scar Serum twice daily on the wound.

Best,
Dr. Karamanoukian
Realself100 Surgeon

A lipoma would have showed up on your scan so that is not the cause. I'd suggest soft tissue filler to correct your asymmetry.